Anna Rosenquist died at the age of 58 on 23 November 1942 in Provo, Utah, Utah, United States. She was buried 26 November 1942 at Pleasant Grove City Cemetery, which is located at 500 North Main in Pleasant Grove. Her plot number is A-19-02-06.
After her death her endowment ordinance was completed, by proxy, on 6 August 1970 in The Church of Jesus Christ of Latter Day Saints in The Church’s Manti Utah Temple, which is located at 200 East 510 North in Manti, Sanpete, Utah, United States. She was also sealed for time and eternity to her parents (Jens Rosenquist Nelson and Elsa Nelson) in The Church’s Manti Utah Temple on 8 September 1970.