Robert and May's first child was born in 1914 so the time frame is from then until now. They were in Moose Jaw in 1914 and I believe they stayed there for many years although it's possible they both died in White Rock or Vancouver, BC., Robert in 1963 and May in 1970. Their first child was Margaret May Henderson, I believe, and there were seven or eight others after Margaret. The information came from adoption records and subsequent research through here and other places. Given that Margaret was born in 1914, and the others after that, I'm having a hard time locating information as the records are more recent and not as accessible. Robert served in WWI and came back "shell-shocked". He was originally listed as a farmer and I've seen labourer. I don't know what he did after the war. I hope this additional information will make a connection. Thank you.