How could I find out more about my grandfather's adoption in Chicago in 1913?

Question:

How could I find out more about my grandfather's adoption in Chicago in 1913?

Family story is he was left on the doorstep of an orphanage with a note reading, "Please take care of (his first name.)" I have always been curious about it.

Best Answer - Chosen by Asker: Hey adoptive mom,

In this case, it sounds like you have no records of the last name, not even sealed records. You could do a DNA link to at least get a comprehension of your ancestors.

Try the following sites: