Hello
There is this birth, which would be not to far from Picton. Aggie could be known as Kate.
Cora Viola Woods
Born September 19, 1905 in Northumberland County
Parents: Charles A Woods & Aggie Kerr
(This looks like the same Charles found by Nancy in border crossings of 1910 and he was Welsh, so if one and the same, this birth puts him with his earlier wife near Picton and the Orphanage)
So far, I have not found an Ontario marriage for Charles Woods and Aggie Kerr, could it be in Wales or England?
I think it may be a good possibility for a sister. Willy remembers something of a sister. Being at a grave for his mother, then taken to an orphanage. He mentions a train ride to the adopted parents. There wasn't a mention of a long train ride to the orphanage, so the family could have been near Picton at the time. Maybe Charles and family were on route to Nipigon as their final destination.
Linda