Martha Mitchell (died December 14, 2011) was an American librarian and archivist.
She was the longtime archivist at Brown University[1] and author of Encyclopedia Brunoniana, a reference work on Brown's history.
A native of Pawtucket, Rhode Island,[2] she attended Tufts University and earned a degree in library science from McGill University.
[3] She began working at Brown as a librarian in 1949 and led the archives from the 1960s[4] until her retirement in 2003.
She became known as the university's "unofficial historian"[3] and "trivia whiz,"[5] with an "encyclopedic mind [that] was filled with all things Brown.