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man‎John Kilroe‏‎, son of Thomas Kilroe and Bridget Rooney‏.
Born ‎1829 Ontario, died ‎28 Feb 1882 Wakefield Twsp, Quebec, Canada Event Description: burial at Farrelton, Quebec, Canada‎, age 52 or 53 years, buried Farrellton, Quebec, Canada
There are no Kilroe's in the 1851 census of Wakefield or Low Townships, Ottawa county, Quebec. There is one family in Wakefield in the 1861 census, spelled "Killrow" or something like that.

This family is in the 1861 Canada census (under the name "Killrae").

This family is in the 1871 census (under the name "Rillsoe"). These are the birth dates: John and Bridget, 1832; Thomas 1858; Elizabeth 1860; Catherine 1862; Mary Ann 1864; Ellen 1868. Tim Ahles has John Kilroe's birth year as 1829.

MikeWhittiker1951 in his tree on line shared this from a stone in Farrellton, Gatineau, Canada, though he wrote a couple of the dates incorrectly and they are corrected here):

In Loving Memory of John Kilroy, Died Feb 28 1882 AE 52 yrs
His Wife Bridget Tracy, Died Jan 12 1901 AE 75 Yrs
Their Son Thomas Died Apr 5 1904 AE 49 Yrs
Their Daughter Ellen Bridget, Died Sep 4 1878 AE 6 Yrs

Married ‎8 May 1854 Farrellton, Quebec, CAN, age 24 or 25 years (married 27 years) to:

womanBridget Tracy‏
Born ‎between 1828 and 1832 Ireland, died ‎12 Jan 1901 Wakefield Twsp, Quebec, Canada Event Description: buried at Farrelton, Quebec, Canada‎, buried Farrellton, Quebec, Canada
Bridget may have stayed in Ireland with the parents when her brother and sisters immigrated to Canada, before or after marrying into the Rooney's. The father died in the late 1840's and Bridget traveled with her mother to Canada, to be with the oldest son, Michael. (Of course, the whole family could have moved here, but no record or grave for Morgan Tracy, the father, has been found in Canada.) Bridget is perhaps the youngest sibling.

The "Tracy" name seems to disappear in the Gatineau valley after the 1861 census.

Children:

1.
man‎Thomas Kilroe‏‎
Born ‎13 Oct 1855 Wakefield Twsp, Quebec, Canada, died ‎5 Apr 1904 Wakefield Twsp, Quebec, Canada Event Description: buried at Farrelton, Quebec, Canada‎, age 48 years, buried ‎1904 Farrellton, Quebec, CAN
The 1891 Census of Wakefield, Ottawa county, Quebec, Canada shows Thomas Kilroe, age 34 (b. ~ 1857) with his mother next to him, listed as Rosa Anna Rooney, age 60.

2.
womanHonora Elizabeth "Eliza or Elizabeth KILLROE" Kilroe‏
Born ‎1857 Wakefield, Quebec, Canada, died ‎14 Feb 1911 Martindale, Low, Quebec, Canada‎, age 53 or 54 years

3.
womanCatherine E Kilroe‏
Born ‎29 Aug 1859 Wakefield Twsp, Quebec, Canada, died ‎24 Feb 1943 Pope County, Minnesota Event Description: St. Donatus Catholic Cemetery, Brooten‎, age 83 years, buried Brooten, Stearns County, Minnesota
There's a Martin Gannon (son of Martin and Mary) in the 1871 census of Low, Ottawa West, Quebec, Canada, age 22 (i.e. born 1849). He is the oldest of 8 children, all born in Quebec. His parents, ages 54 and 52, were born in Ireland. There is just this one Gannon family in the area at that time.

In the 1940 census, Catherine is living with two daughters and their husbands in Long Beach, Pope County, Minnesota.

4.
woman‎Mary Anne Kilroe‏‎
Born ‎28 Dec 1861 Wakefield Twsp, Quebec, Canada, died ‎1 Mar 1909 Quebec, Canada‎, age 47 years

5.
woman‎Ellen Bridget Kilroe‏‎
Born ‎15 Sep 1867 Wakefield Twsp, Quebec, Canada, died ‎3 Sep 1872 Wakefield Twsp, Quebec, Canada Event Description: buried at Farrelton, Quebec, Canada‎, age 4 years, buried ‎5 Sep 1872 Farrellton, Quebec, CAN
Tombstone states "Died Sept. 4, 1878, AE 6 Yrs"