Thank you so much, both Marianne and Bob. Sorry it took me a while to check this, but I've just started a new job and haven't had much time to do anything online in a while. I really appreciate all your help.
Henry had already passed before my grandfather was born, and I gathered that they really didn't talk about him (or maybe just didn't know much about his side). All I had to go on was his name and a pair of shoes that the family kept. I really can't say enough how much this will mean to my grandfather and my family. We'll be able to fill in a gigantic hole in our family history.