Possibility for Thomas Ryan and wife Ann Patterson on the 1851 census in Terrebonne, St Jerome
Thomas Ryan 50, b. Ire and wife Anne Patterson 40, b. Ire and children all born in Canada
John 14, James 12, William 9, Thomas 7, Richard 6, and Mary 3.
In 1861 Argenteuil, Que
Thomas Ryan b. 1801 Ire and Ann Patterson b. 1817 Ire.
John 24, William 17, Thomas 14, Maryann 12, Richard 8, Jane 6, Elizabeth 4, Robert 2 all born Quebec.
Death for Thomas 17 Oct 1890 Mille Isle, Quebec and Ann 25 Apr 1899 Mille Isle, Quebec taken from an ancestry tree. They show their origins as County Mayo Ireland. I found Ann's death in the Drouin collection but didn't look for Thomas'.
This is a "possibility" as I didn't look for other Thomas and Ann combinations.
Debbie