James was born in 1816. He died on 4 February 1880, along with other members of his family, in Buddulph Township near Lucan, Ontario, Canada.
1871 Census of Canada. Biddulph Township, Middlesex County, Ontario. Surname spelled Donoley. 
James Donoley Male 50 Ireland
Johanna Donoley Female 48 Ireland
William Donnoly Male 23 O
Patrick Donnoly Male 21 O
Michael Donnoly Male 19 O
Robert Donnoly Male 18 O
Thomas Donnoly Male 16 O
Jane Donnoly Female 14 O
Although James Donnolly's young relative, Bridget Donnelly (1858-1880), was not with them long enough to appear in a census, she did live in the home of the senior Donnellys and died along with them on 4 February, 1880 in Biddulph Township, Middlesex County, Ontario, Canada. One of the early books on the Donnellys gave Bridget's relationship to James as his niece. She was born in Ireland and apparently came to live with her relatives in Canada. Her death record is on the same page in the register as those of three of her relatives; James's record is on the following page. 
Death record notes that he was "supposed to be murdered", meaning that he was understood to have been murdered. 
"Canada Census, 1871," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:M47K-B46 : 24 October 2018), Jane Donnoly in household of James Donoley, Biddulph, Middlesex, Ontario, Canada; citing 1871; citing National Archives of Canada, Ottawa, Ontario.
"Ontario, Canada, Deaths and Deaths Overseas, 1869-1946," database and images, Ancestry, (www.ancestry.com: accessed 22 January 2019), death of James Donnelly, 4 February 1880, Biddulph, Lucan, Middlesex, Ontario, "Registrations of Deaths, 1869-1946," Collection: MS935; Reel: 25; Archives of Ontario; Toronto, Ontario, Canada.