After further study I believe that David Kincaid who married Rebecca Osborn is the son of John Kinkead of Bart Township, Lancaster County, PA, who I believe to be the John Kinkead of Oxford Township, Chester County, PA and son of John Kinkead of Sadsbury Township, Chester County, PA.  I believe that the early portion of the history of this Kincaid line in Ben Dixon's book is flawed.  So I took the actual facts and looked at them.  The short timeline below indicates the early record of this line. 1750 John Kinkade, Jr. [000022] born to John Kinkade [000022] & wife Jayne Scott in either Ireland  or Penn. 1761 James Kinkade [000022] born to John Kinkade & Jayne [000022]  in Ireland. 1765 Hannah Kinkade [000022] born to John Kinkade [000022] & Jayne Scott in Penn. married David or                 Daniel Johnson. 1768 Nancy Kinkade [000022] born to John Kinkade & Jayne [000022]  in Penn. married Samuel Kennedy. 1770 Elisabeth Kinkade [000022] born to John Kinkade [000022] & Jayne Scott in Penn. married David Davis. 1772 James Kinkade [000022] born to John Kinkade Jr. & Polly Davis in Penn. 1775 David Kinkade [000022] born to John Kinkade Jr. [000022] & Polly Davis in Penn. 1775 Margaret Kinkade [000022] born to John Kinkade [000022] & Jayne Scott in Penn. 1801 Andrew Kinkade [000022] born in PA, father b PA, mother b NJ, in 1880 Census, in Bethel Township,             Monroe County, OH. USFC, 1880, p. 424C. 1802 Andrew Kinkade [000022] born to David Kinkade [000022] & wife Rebecca Osborn on May 12, 1802 in         Greene County, PA. None of the above births can be confirmed through any bible record or any list from the Pennsylvania Archives. Below is a time line for David Kinkead, son of John Kinkead of Oxford Township, later of Drumore and Bart Township, Lancaster County, PA.  I thought for a short while that David Kinkead in Cumberland Township, Greene County, PA was the son of Samuel Kinkead of Fawn Township, but there are children in the family older than 5 years old and David, son of Samuel Kinkead of Fawn Township was still single in 1805. Andrew Kincaid, son of David Kinkead was born in Penn. in 1801/02 and his father was born in Penn. as Andrew stated in the 1880 Census as did his brother Secrist stated in the 1880 census.  The other Kincaids in Greene County, PA are the sons of Robert Kinkead and Susannah Powell.  Samuel went to Monroe County, OH as did David Kinkead they are both in Greene County in 1810 and then in Monroe County, OH in 1820.  Robert Kinkead, Samuel's brother died in 1815.  As for James Kinkead who married Nancy Taylor I believe he is connected to John Kinkead later of Mifflin Township, Allegheny County, PA, the John Kinkead Jr. formerly of Lancaster County, PA. 1770 David Kinkead [000012] born to John Kinkead [000012] & wife Elizabeth McCall in Londonderry                     Township,  Chester County, PA. Extrapolation 1785 John Kinkaid, [000012] Oxford Township, Chester County, PA & his wife, Elizabeth sold to Abraham             Cooper 145  acres for 775 pounds on August 23, 1785, being a tract of land Samuel McCall and his             wife, Sarah of Fawn Township, York County, PA purchased on March 23, 1763, called William Penn’s         Manor in Oxford Township, Chester County, PA. An indenture for this tract of land was made between         Samuel McCall and John Kinkead [000012] on January 1, 1768. Witnesses: John Torbet & William             Porter.  Presented to Joseph Luckey and James Creswell, recorded August 23, 1786. Recorded by             Joseph Luckey. Chester County Archives & Records Service, West Chester, PA, Deed Book, Vol. Q2,             p. 36. 1786 John Kinkead [000012] taxed in Drumore Township, Lancaster County, PA for 100 acres, 2 horses, 2             cows at 2.12.6. Lancaster County Historical Society, Lancaster, PA 1787 John Kinked [000012] taxed in Drumore Township, Lancaster County, PA for 200 acres.          Lancaster County Historical Society, Lancaster, PA 1787 Samuel Kincade, [000012] freeman, taxed in Bart Township, Lancaster County, PA.          Lancaster County Historical Society, Lancaster, PA 1788 John Kinked [000012] taxed in Drumore Township, Lancaster County, PA for 40 acres. Lancaster                 County Historical Society, Lancaster, PA 1789 John Kincaid [000012] & son, John, [000012] taxed in Drumore Township, Lancaster County, PA for 40         acres.  Lancaster County Historical Society, Lancaster, PA 1790 John Kenkade, [000012] Drumore Township, Lancaster County, PA, 3 males over 16, 1 male under 16,         4 females. USFC, p. 131. 1790 John Kincaid [000012] & son, John, [000012] taxed in Drumore Township, Lancaster County, PA.                  Lancaster County Historical Society, Lancaster, PA. 1792 John Kinkead [000012] & son, John, [000012] taxed in Drumore Township, Lancaster County, PA for 40         acres, 2 horses, 2 cows. Lancaster County Historical Society, Lancaster, PA 1792 David Kincaid, [000012] son of John Kinkead, above, taxed in Drumore Township, Lancaster County, PA         for 1 horse, 3 cows. Lancaster County Historical Society, Lancaster, PA 1792 John Kinkead, [000012] Sr., Drumore Township, Lancaster County, PA purchased 186 acres in                     Drumore Township, Lancaster County, PA containing a merchant, grist, hemp & saw mill from John             Eackman & his wife, Catherine, on February 1, 1792. Lancaster County Office of Records & Archives,         Lancaster, PA 1793 John Kinkaid [000012] & wife, Elizabeth, Drumore Township, Lancaster County, PA sold to Joshua             Pusey, London Grove Township, Lancaster County, PA, 186 acres, a plantation containing a merchant,         grist, hemp, & saw mill for 900 pounds lawful money of the State of Pennsylvania, November 4, 1793;             recorded October 28, 1794. Lancaster County Office of Records &  Archives, Lancaster, PA. 1794 John Kinkead [000012] and son, John, [000012] taxed in Drumore Township, Lancaster County, PA.             Lancaster County Historical Society, Lancaster, PA 1794 David Kincaid [000012] taxed in Drumore Township, Lancaster County, PA. Lancaster County Historical         Society, Lancaster, PA 1797 John Kinkead [000012] & son, John [000012] taxed in Bart Township, Lancaster County, PA.          Lancaster County Historical Society, Lancaster, PA 1797 John Kinkead, [000012] Bart Township, Lancaster County, PA grantee, appointed Justice of the Peace         by Governor Thomas Mifflin, February 20, 1797. Deed Book UU, p. 232. Lancaster County Office of             Records & Archives, Lancaster, PA 1799 John Kinkead [000012] & son, John [000012] taxed in Bart Township, Lancaster County, PA. Lancaster         County Historical Society, Lancaster, PA 1800 John Kinkead, [000012] Bart Township, Lancaster County, PA, 1 male 26 to 45, 2 males to 10, 1                 female 26-45, 1 female to 10. USFC, microfilm m32-39, p. 249. 1800 John Kinkead, [000012] Esq., Bart Township, Lancaster County, PA, 1 male above 45, 1 male 10-16, 1         female above 45, 1 female 16-26, 1 female to 10,. USFC, microfilm m32-39, p. 249. 1800 Daniel (David) Kenkade, [000012] Chillisquaque Township, Northumberland County, PA, 1 male 26-45, 3         males under 10, 1 female 26-45, 10-16. USFC, 117:03.. 1800 John Kinkead [000012] & son, John, [000012] taxed in Bart Township, Lancaster County, PA for 100             acres. Lancaster County Historical Society, Lancaster, PA 1800 David Kincaid, [000012] miller, of Chillisquaque Township, Northumberland County, PA bought from             Barnard Hubley, brewer & wife, Elizabeth of Northumberland town, Northumberland County, PA lot #5 in         Milton, Northumberland County, PA for lot #26 on Sandusky St. in Allegheny, Allegheny County, PA              and lot #57 called Magdalena on August 20, 1800.  Allegheny County, PA Deed Book, 10-K, p. 94. 1801 John Kinkead [000012] & son, John [000012] taxed in Bart Township, Lancaster County, PA for 100             acres. Lancaster County Historical Society, Lancaster, PA 1804 Jean Kinkade, wife of John Kinkade, [000012] daughter, mentioned in the will of Samuel McClellan of             Colerain Township, Lancaster County, PA, will written October 30, 1804, proved April 8, 1806.                     Lancaster County Will Abstracts. 1807 John Kinkead, [000012] farmer, taxed in Bart Township, Lancaster County, PA. Lancaster County                 Historical Society, Lancaster, PA 1807 John Kinkead, [000012] Esq. taxed in Bart Township, Lancaster County, PA. Lancaster County                     Historical Society, Lancaster, PA 1808 John Kinkead [000012] & son, John, [000012] taxed in Bart Township, Lancaster County, PA.                     Lancaster County Historical Society,  Lancaster, PA 1808 David Kinkead [000012] of Erie County, PA sold to Joseph Caskey of Pittsburgh, Allegheny County, PA         lot #114 in Pittsburgh for $210..00 on July 27, 1808. Allegheny County, PA Deed  Book, p. 227. 1808 David Kinkead [000012] of Erie County, PA sold to Samuel Pebbles of Pittsburgh, Allegheny County,             PA lot #139 in Pittsburgh, Allegheny County, PA for $200.00 on July 28, 1808.  Allegheny County, PA         Deed Book, 15-P, p. 227. 1808 David Kinkead [000012] of Erie County, PA sold to William Montgomery of Pittsburgh, Allegheny                 County, PA lot #26 for $21.00 on July 28, 1808.  Allegheny County, PA Deed Book 15-P, p. 229. 1808 David Kinkead [000012] of Erie County, PA sold to John McClintock of Pittsburgh, Allegheny County,             PA 235 acres for $240.00 in Pittsburgh on August 2, 1808. Deed Book 15-P, p. 231. 1809 John Kinkead [000012] & son, John [000012] taxed in Bart Township, Lancaster County, PA. Lancaster         County Historical Society,  Lancaster, PA 1809 John Kinkead. [000012] A draught of a tract of land situate in Bart Township in the County of Lancaster         containing 107 acres and one hundred and fifty-two perches and the usual allowance of six percent for         roads &c being part of a larger tract surveyed in pursuance of a warrant bearing date the 26th of March         Anno Domini 1736 granted unto John Patton , surveyed the 28th of July A.D. 1809 for         John Kinkead..  Jacob Hibshman, D.S. To Andrew Porter, Esq. Surveyor General.  Adjacent Land                 Owners: the mine land, James Knox, Jacob Werfel, John Knegey, Samuel Ferree.  Pennsylvania State         Archives, RG-17, Records of the Land Office, COPIED SURVEYS, 1681-1912, Vol. C-191, p. 107. Greene County, PA 1810 David Kincade, [000012] Cumberland Township, Greene County, PA, 1 male 26-45, 1 male 10-15, 1             male under 10, 3 females under 10, 1 female 26-45. USFC, p. 055.  Son of John Kinkead [000012] of             Bart Township, Lancaster County, PA. 1810 Robert Kincade, [000005] Jefferson Township, Greene County, PA, 1 male 26-45, 1 female  under 10, 1         female 16-25, 1 female over 45. USFC, p. 048. 1810 Samuel Kincade, [000005], Franklin Township, Greene County, PA, 1 male 26-45, 2 males under 10, ,         1 female 10-16, 1 female 26-45.  USFC, p. 022. 1810 William Kincade, [000005] Jefferson Township, Greene County, PA, 2 males 16-25, 1 male 26-45, 3             females under 10, 1 female 26-45.  USFC, p. 048. 1810 John Kinkead, [000012] Esq., Bart Township, Lancaster County, PA, 1 male over 45, 1 male 16-26,  3         males 10-16, 1 male under 10, 1 male 16-26,  3 females under 10, 1 female over 45.  USFC, p. 457. 1810 John Kinkead [000012] & son, John, [000012] taxed in Bart Township, Lancaster County, PA.                     Lancaster County Historical Society, Lancaster, PA 1811 John Kinkead [000012] & son, John, [000012] taxed in Bart Township, Lancaster County, PA.                     Lancaster County Historical Society,  Lancaster, PA 1811 John Kinkead, [000012] Bart Township, Lancaster County, PA, will written, May 13, 1811,  proved, Nov.         1, 1812.  Wife: Elizabeth; children: David, Elisabeth, Polly, & John; grandson,  Joseph, son of  John             Kinkead & John Rockey, son of Elizabeth Rockey. Lancaster County Will Abstracts. 1813 John Kinkead [000012] taxed in Bart Township, Lancaster County, PA. Lancaster County Historical             Society, Lancaster, PA 1815 Robert Kincaid  [000005] born March 29, 1777 in Hamiltons Bann Township, York County, PA, died             March 17, 1815, age 37 years, 11 months, Presbyterian Church Cemetery, Jefferson, Greene County,         PA. 1815 Robert Kincaid, [000005] will, Greene County, PA Will Book Vol.. 1, p. 147. 1817 John Kinkead [000012] died intestate, Bart Township, Lancaster County, PA, the court appointed Jane         Kinkead & Joseph Kinkead administrators of John Kinkead’s estate, April 19, 1817. Lancaster County         Office of Records & Archives, Lancaster, PA, Bond Book B7, p. 427. 1818 Widow (Jane) Kinkead [000012] taxed in Bart Township, Lancaster County, PA. Lancaster County                 Historical Society, Lancaster, PA 1818 Joseph Kinkead [000012] taxed in Bart Township, Lancaster County, PA. Lancaster County Historical         Society, Lancaster, PA 1819 Widow (Jane) Kinkead [000012] taxed in Bart Township, Lancaster County, PA. Lancaster County                 Historical Society, Lancaster, PA 1819 Joseph Kinkead [000012] taxed in Bart Township, Lancaster County, PA. Lancaster County                         Historical Society, Lancaster, PA Greene County, PA 1820 William Kincaid, [000005] Esq., Jefferson Township, Greene County, PA, 1 male over 26-45, 1 male 16-        25, 2 males under 10, 1 female 26-45, 1 female 16-25, 3 females 10-16, 3 females under 10,  USFC. Lancaster County, PA 1820 Jane Kinkead, [000012] Bart Township, Lancaster County, PA, 1 male 26-45, 1 male under 10,.1 female         16-25.  USFC. Monroe County, OH 1820 David Kincade, [000022] Center Township, Monroe County, OH. USFC, Index, p. 407. 1820 Samuel Kincade, [000005] Jackson Township, Monroe County, OH. USFC, Index, p. 407. 1850 Samuel Kincaid, [000005] age 77, born PA, son of Robert Kincaid & Susan Powell, Perry Township,             Monroe County, OH.  USFC, p. 224. 1850 Nancy Kincaid, age 62, born PA, Perry Township, Monroe County, OH. USFC, p. 224. 1870 Andrew Kincaid, [000022] age 68, born PA, white, Bethel Township, Monroe County, OH.  USFC, roll             1245, p. 106 1880 Andrew Kinkade, [000022] born 1801, in PA, age 79, white, farmer, widowed, father b PA, mother b NJ,         Bethel Township, Monroe County,  OH, son of David Kinkade & wife Rebecca Osborn. USFC, p. 424C. 1880 Rachel Kinkade, [000022] born 1838, in OH, age 42, white, keeping house, father b PA, mother b OH,         daughter of Andrew Kinkade, Bethel  Township, Monroe County, OH.  USFC, p. 424C. 1880 Douglas P. Kinkade, [000022] born 1864, in OH, age 16, white, at home, father b OH, mother b OH,             grandson of Andrew Kinkade, Bethel Township, Monroe County, OH. USFC, p. 424C. 1880 Secrist Kincade, [000022] born 1828, in OH, age 52, white, married, farmer, father b PA, mother b PA,         Essex, Stark County, IL.  USFC, p. 363C. 1880 Elizabeth Kincade, born 1835, in IN, age 45, white, keeps house, father b KY, mother b OH, Wife of             Secrist Kincade, Essex, Stark County, IL.  USFC, p. 363C. 1880 Henry Kincade, [000022] born 1855, in IN, age 25, white, single, farmer, son of Secrist Kincade, Essex, Stark County, IL.  USFC, p. 363C. 1880 Aurilia Kincade, [000022] born 1859, in IL, age 21, white, single, daughter of Secrist Kincade, Essex, Stark County, IL.  USFC, p. 363C. 1880 Beatrice Kincade, [000022] born 1867, in IL, age 13, white, single, daughter of Secrist Kincade, Essex, Stark County, IL.  USFC, p. 363C. 1880 Mabel Kincade, [000022] born 1870, in IL, age 10, white, daughter of Secrict Kincade, Essex, Stark County, IL.  USFC, p. 363C. 1880 William Kincade, [000022] born 1872, in IL, age 8, white, son of Secrist Kincade, Essex, Stark County, IL..  USFC, p. 363C. 1880 Oscar Kincade, [000022] born 1875, in IL, age 5, white, son of Secrist Kincade, Essex, Stark County, IL.  USFC, p. 363C. 1880 Myrtle Kincade, [000022] born 1878, in IL, age 2, white, daughter of Secrist Kincade, Essex, Stark County, IL.  USFC, p. 363C. 1880 Bessie Kincade, [000022] born 1878, in IL, age 2, white, father b PA, mother b IL, granddaughter of Secrist Kincaide, Essex, Stark County, IL.  USFC, p. 363C.