Her original social security card application is an unimpeacheable source to learn the names of her parents. The social security administration can search with or without her SSAN. Mamie would have completed the application or provided the info for same. Any lies would have been told by you know who! http://www.socialsecurity.gov/online/ssa-711.pdf
Spent more than five years and tens-of-thousands of dollars in an unsuccessful search for a wandering uncle. The social security administration found him using the names of his parents, estimated birthdate, and place of birth. It only cost $29.00 and six weeks of waiting for the results.