if you are lucky, you will be able to read the names of who he left and who he is going to. say it says left father fred. then find marriage license or death cert and see if fred is his dad. also, he may have gone back and forth more than once, look for that (more names more clues) and type in just the town he was from and read the manifests of others who came from there. sometimes the guy would come and make some money and send for his relatives.
good luck