When William Irwin was born in 1804 in Moira, Down, Ireland, his father, WIlliam, was 24 and his mother, Eliza, was 24. He died on February 9, 1887, in Essex, Ontario, Canada, having lived a long life of 83 years.
Sources
"Canada Census, 1851," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:MWT9-72F : 3 August 2016), Wm Irvine, Mersea, Essex County, Canada West (Ontario), Canada; citing p. 37, line 14; Library and Archives Canada film number C_11720, Public Archives, Ontario.
"Ontario Census, 1861," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:MQQN-RX4 : 9 March 2018), William Irwin, Mersea, Essex, Ontario, Canada; citing p. 18, line 25; Library and Archives Canada film number C-1019-1020, Public Archives, Toronto; FHL microfilm 349,262.
"Canada Census, 1871," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:M4QK-QTH : 24 October 2018), William Irwin, Mersea, Essex, Ontario, Canada; citing 1871; citing National Archives of Canada, Ottawa, Ontario.
"Canada Census, 1881," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MVDT-VQ9 : 20 May 2019), William Irwin, Mersea, Essex, Ontario, Canada; from "1881 Canadian Census." Database with images. Ancestry. (www.ancestry.com : 2008); citing William Irwin, citing Library and Archives Canada, Ottawa, Ontario.
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DNA Connections
It may be possible to confirm family relationships with William by comparing test results with other carriers of his Y-chromosome or his mother's mitochondrial DNA.
However, there are no known yDNA or mtDNA test-takers in his direct paternal or maternal line.
It is likely that these autosomal DNA test-takers will share some percentage of DNA with William: