In the summer of 2007 the Smithsonian National Postal Museum began contacting surviving Railway Post Office clerks in preparation of creating a historical record of the service and its workers within the museum. Approximately 200 clerks responded to the preliminary inquiry. Since that summer, museum staff and a rotating group of dedicated interns have sought to obtain as much information as possible from the clerks. As a part of this process, museum interns Jen Giambrone and Caitlin Herzog spent several months speaking with retired RPO clerks from across the country and collecting artifacts. The interviews they conducted are listed below.