Thank you so much! Yes, my grandfather was Robert Tozer. Your response actually answers a BIG issue I ran into yesterday, when I found Richard's marriage certificate in Erie, PA, only to see "Cavanaugh" as Agnes' maiden name instead of Armstrong! I was so convinced I had the wrong person, I deleted about 15 people from her line :)
William actually married Evelyn, who went by Laura, and died in Buffalo. Robert died in Aberdeen, MD; his wife is still living, as well as his two sons.
Feel free to send me email privately if you want to maintain contact. How do you fit into all this?