What other document can you use to sign up for Social Security other than a birth certificate?

Question

My husband is ready to sign up for Social Security and we have no record of his birth because it was a home birth and a big secret at the time. We believe an old doctor delivered him but we can't find records.

Answer 1

YOu dont need a BC, its just one of the documents that prove you are a citizen of the US:

http://www.ssa.gov/pubs/10002.html#how