I found this info in the 1900 census for Lynn, Mass: Timothy Dwyer found in: Census Microfilm Records: Massachusetts, 1900 Lived in: Lynn, Essex County, Massachusetts Series: T623 Microfilm: 644 Book: 2 Page: 198 June 8th, 1900 852 Washington Street, Lynn Dwyer, Timothy, head, w, m, April 1860, 40, M, 16, Ireland, Ireland, Ireland, 1879, 21, morroco dresser (leather worker?) ", Katherine, wife, f, w, May 1865, 35, M, 16, 8, 5, Ireland, Ireland, Ireland, 1870, 30, none ", William L, son, m, w, Feb 1885, 16, S, MAss, at school ", Mary C., daughter, f, w, Nov 1886, 13, S, Mass, at school ", JOseph, son, m, w, April 1890, 10, S, Mass, at school ", John, son, w, Aug 1895, 4, S, Mass ", Timothy, son, m, w, April 1898, 2, S, Mass According to this Katherine (Catherine) had 8 children born and only 5 living in 1900 - there's is the missing 3 from the 11 you said they had. And look at the birth dates - Mary is born a little earlier than you stated (women fibbed!) In 1910: Name: Timothy Dwyer Age in 1910: 44 Estimated Birth Year: 1865 Home in 1910: 4-WD LYNN, ESSEX, Massachusetts Race: White Gender: Male Series: T624 Roll: 585 Part: 1 Page: 130A Year: 1910 2 Carlton Street, Lynn Dwyer, Timothy, head, m, w, 44, M1, 25, Ire/English, Ire/English, Ire/English, 1882, Na, teamster, gas company ", catherine, wife, f, w, 42, f,w , M1, 25, 11, 8, same, 1873 ", William E., son, m, w, 24, S, Mass, Asst. Foreman, Show Factory ", Mary C., daughter, f, w, 23, S, Mass, Asst. Forelady, Shoe Factory ", Joseph A., son, m, w, 20, S, Mass, apprentice, printing co. ", John H., son, m, w, 14, S, Mass ", Timothy, son, m, w, 11, S, Mass ", Alice, daughter, f, w, 9, S, Mass ", Gertrude, daughter, f, w, 6, S, Mass ", Emily, daughter, f, w, 2, S, Mass And found Timothy in 1920 Lynn - same address as a widower. Catherine died after 1920 and before 1930. Name: Timothy Dwyer Age: 65 years Estimated birth year: 1854 Birthplace: Ireland Race: White Home in 1920: Lynn, Essex, Massachusetts Home owned: View Image Sex: View Image Marital status: View Image Year of immigration: View Image Able to read & write: View Image Roll: T625_694 Page: 1B ED: 167 Image: 0482 And he's still around in 1930: Name: Timothy Dwyer Age: 73 years Estimated birth year: 1856 Birthplace: Ireland Relation to Head-of-house: Head Race: White Home in 1930: Lynn, Essex, Massachusetts Occupation: View image Education: View image Military Service: View image Rent/home value: View image Age at first marriage: View image Parents' birthplace: View image Owned a radio: View image Image Source: Year: 1930; Census Place: Lynn, Essex, Massachusetts; Roll: T626_899; Page: 3B; Enumeration District: 153; Image: 0798. He is at the same address. Living with him is daughter Mary C. Freeman and family.. Lucy