An update to this search of mine. After receiving Robert's death record, which gave me the name of his wife, I posted a similar request message on the Wentworth message board. Someone there suggested I write to the Hamilton Public Library Special Collections, which I did. They were very helpful indeed and sent me the obituaries for both Robert BOYD and Annie WILKINSON. Then I wrote to the Hamilton Cemetery and they sent me burial information for them and all the other family that was buried in the same plot. I discovered Annie's daughter, Florence (married to Hugh McNALLY) who died in Brampton, so wrote to the Public Library there and they sent me her obit. All this new information gave me names of descendants, some of whom I found on Facebook. I've written to a few, but have not received any replies yet. On New Year's Eve, I received a reply to my message on the Wentworth board, from a person who had some information about my grandfather. Thank you to everyone who has helped me. I am very, very grateful.