Vault 15 - Intended to stay closed for 50 years and include people of radically diverse ideologies. Gathered from what you hear from Aradesh in Fallout, he has quite a bit of multicultural flavoring to his speech. The birthplace of three raider groups and Shady Sands (later to become the NCR).
Vault 17 - The vault was raided in 2154 and its inhabitants taken prisoner by the Master's Army. They were subsequently turned into super mutants.