| politicallibrary.org | New Hampshire Political Library |
| fernbank.edu | Fernbank Museum of Natural History |
| archives.gov | Presidential Libraries |
| tusculum.edu | President Andrew Johnson Museum and Library |
| trumanlibrary.org | President Truman - Harry S. Truman Presidential Museum And Library |
| rbhayes.org | Rutherford B. Hayes Presidential Center |
| nixonfoundation.org | Richard Nixon Library and Birthplace |
| utexas.edu | Lyndon Baines Johnson Library and Museum |
| marist.edu | The Franklin D. Roosevelt Library and Museum |
| cartercenter.org | Carter Center |
| cartercenter.org | www.cartercenter.org/ |
Canada , Ontario , Ottawa