Some of the following census information you may already have.
1871 census Grattan, Renfrew South
PRIMEAU
Thomas, 23, b Quebec, Catholic, french
Catherine Jane, 23, Ont
Catherine, 2, Ont
Mary, b March, 1/12
Alexander, 15, b Quebec [brother?]
1861 census Grattan, Renfrew
GOKEY/GOOKEE
Joseph, 42, b Lower Canada [Quebec], Roman Catholic
Ann Searson, Ireland, 35, RC
Mary Ann, 15, Upper Canada [Ont]
Catherine J, 13
Joseph, 11
Johanna, 9
Felicia, 7
Andrew, 5
Anne, 3
Thomas, 1
Children all born Upper Canada.
Father's name is spelt Gookee, all the rest Gokey
Next to them is a Mary Premoe,10 and Alexander Premoe, aged 5.
1861 census Gratton Renfrew
BREMOE
Baptiste, 39, RC
Mary Rufio, 38
Thomas, 12
Mary and Alexander from above census belong to them.
All born Quebec. All Roman Catholic
The enumerator is very inventive with these spellings.
1851 census St Urbain Beauharnois County Quebec
PRIMEAU
Jean Bpt, b Chateauguay, Quebec, 30
Marie Reufiange?, 27, PQ
Jean Bpt, 4
Marie, 1
Women in Quebec are ususally enumerated under maiden name so this is likely Mary Rufio on 1861 census Renfrew although Thomas isn't on this one.
1851 census Bougham Renfrew County
GOCKIE
Joseph, 27
Ann Sarson, 27, Ireland
Mary A, 6
Jane, 4
Joseph, 2
Johanna, 1
Just says b Canada, except for mom.
Catherine, 12 and Thomas,8 are with grandparents Joseph and Ann Gothier in Granton Renfrew South on 1881 census under name Primoe.
Mary Primo, 10, is with father Thomas and wife Harriet in Granton Renfrew on 1881 census.
Napoleon Vincent, b 22 May 1888, s/o Joseph Vincent and Mary PRIMO.
There seems to be 2 Joseph Vincents in Renfrew, one married to a Mary Primo and one married to a Mary Bougnow? All about the same age.
Did not find a thing on either Thomas or Catherine.