Poke them with a stick!
But seriously, there are a lot of people search tools on the web. See the Related Link to get you started.
No, he is not alive.
There are many Internet companies on which you can run a search.
yes he is still alive.
Widow?
No
Yes, he is.
No
Phillis Wheatley's husband is dead
His name is William C. Warren. I can not find out anything about him other than that he and Betty divorced in 1947. I can not even find out when he was born, but he would have to be in his late nineties if he is alive and he was in poor health from alcohol while they were married, so I would be amazed if he were alive.
Amelia's husband, George Putnam died in 1950
He appears to be, yes.
No, he died in 2004.