New in 2015: U.S., Social Security Applications and Claims Index, 1936-2007 at Ancestry.com, may be searched for free at Family History Centers. When you find an individual in the SSDi you can request a full copy of their application, which is known as a SS-5. Rootsweb had made the process easy but is now listed under a page at Ancestry.com. U.S., Social Security Applications and Claims Index, 1936-2007 is a great new addition for 20th-century records. And don’t worry – everyone in this index is deceased, so your personal information is safe (or as safe as it can be these days!).