Historian of the United States Senate

The Historian of the United States Senate heads the United States Senate Historical Office, which was created in 1975 to record and preserve historical information about the United States Senate. The current Historian of the Senate is Betty K. Koed.

List of Senate Historians
 Richard A. Baker 1975–2009
 Donald A. Ritchie 2009–2015
 Betty K. Koed 2015–present

Other websites
https://www.senate.gov/pagelayout/reference/a_three_sections_with_teasers/biblio.htm
https://www.senate.gov/artandhistory/history/common/generic/Senate_Historical_Office.htm