A necrology of United States senators :
showing those who died during their terms of office and all who have died since 1789.

APA Citation

United States. Congress. Senate. (1975). A necrology of United States senators: showing those who died during their terms of office and all who have died since 1789. Washington: U.S. Govt. Print. Off..

MLA Citation

United States. Congress. Senate. A Necrology of United States Senators: Showing Those Who Died During Their Terms of Office And All Who Have Died Since 1789. Washington: U.S. Govt. Print. Off., 1975.

Warning: These citations may not always be complete (especially for serials).