This information comes from the Allwein manuscript: ISAAC M., - son of William and Mary )Mairs) Allwein born May 7, 1842 was reared on his father's farm and educated in the public Schools. He learned his father's trade of plastering but when still in his teens commenced teaching in the public schools taking several sessions of training at a normal class in Lebanon, PA. On July 2, 1863 he enlisted in Captain John Stumm's Company F, 48th Regiment P.V.M. to serve for a term of 90 days for the defence of his country, was honorably discharged August 26, 1863 at Reading, PA by order of Governor Curtin. He re-enlisted as private in Captain B. Frank Heens' Company F. 93rd Regiment P.V. Inf. Vol. Feb. 26th, 1864 for the term of three years or during the war. He served under Generals Grant, Meade, Hancock, Sheridan and others, was in action in the battle of the Wilderness, Pennsylvania, Cold Harbor, Petersburg, Weldon, Winchester, Fishers Hill, Cedar Creek and other minor engagements, he was never wounded in battle except a slight scratch on right cheek, but his gun had three bullet marks received while fighting. He was honorably discharged at the close of the war June 27th, 1865 at the defenses of Washington, D.C. After his return from the war he married to Fianna Garrett and again taught in public schools but shortly after removed to Lebanon, PA and engaged in the Dry Good business in partnership with Peter A. Glick under the firm name of Allwein & Glick at 745 Cumberland Street. The business not being very successful he sold out his interest after one years trial in April 1869 to his partner Mr. Glick. Remained living in Lebanon another year, after which he purchased a property in North Lebanon Township of about five acres of Benjamin Swanger and moved with his family to this place in the Spring of 1870. He continued teaching in the public schools in the winter time and in the summer worked with neighboring farmers at harvesting. Altogether he taught nineteen terms, all in Lebanon County with the exception of one term in Schuylkill County and one term in Berks County, however, the last term which he taught at Glicks school near Mount Zion he was unable to finish on account of a severe attack of Rheumatism. In the spring of 1883 he sold his country property to Theodore H. Allwein and purchased a lot in Lebanon (5th and Lehman Sts.) upon which he erected a house and moved with his family on June 23rd the same year into the property and opened a grocery store. He carried on the grocery business also at the same time plastering and made a success in both. His son Harry taking care of the store trade while he worked at his trade of plastering. He continued in business successfully until the spring of 1890 when he sold out to his son Harry and son-in-law Harry Zweier after which he retired and moved to one of his properties on North Fifth Street.