http://www.ancestry.com/ssdi/advanced.htm The application form (SS-5) contains the following information: Full name Full name at birth (including maiden name) Present mailing address Age at last birthday Date of birth Place of birth (City, county, state) Father's full name "regardless of whether living or dead" Mother's full name, including maiden name, "regardless of whether living or dead" Sex and race Ever applied for SS number/Railroad Retirement before? Yes/No Current employer's name and address Date signed Applicant's signature