Nora-
I don't know. I also have them in the 1881 census of Addington, Camden East and she has the 5 Davy kids and Hugh 6, and George 4 Conroy. Then they disappear.
I know that Hugh Conroy Sr was a widow for a long time and then married Margaret Madden Davy 4 SEP 1875 at St. Anthony de Pada, Centerville-L&A- Roman Catholic.

I was looking at the Davy connection in these posts but Moses must be a different family in 1851 Addington County-Camden East census
Moses was 33- Shoemaker, b-Ernesttown , W. Methodist
Margaret 21-Scotland, Mary 3, Edward 1,
1871 Census
Moses Davy 51 married
margaret 38, Mary Jane 20, Edward 18,James 15,Sarah 14,Emily 11,William 8, Charles 5,Margaret 3.
Margaret(Madden) Davy must have been pregnant because Isabella Malvaney Davy was born 1871 and shows up in 1881 census when Margaret is a widow (from Hugh) and she is living in Addington still Camden East with 5 Davy kids and the 2 conroy kids.
She must of found a 3rd husband and left the county because I find no trace of the conroy boys.
The older stepchildren Conroys lived in Champion, Jefferson County NY and Watertown, NY. Never is there a mention of Hugh jr or George Conroy.
Hugh Conroy Sr was from Ireland and his 1st wife Mary Barrett died. Their children are the family Conroy/Haley in my Haley tree.
You do great research Nora and have helped in the past. I enjoy seeing your posts.
Karen