Stanley, Edith; Malnic, Eric (April 6, 1991). "23 killed in crash of plane". Eugene Register-Guard. (Oregon). Los Angeles Times. p. 1A. Archived from the original on October 22, 2022. Retrieved October 22, 2022.
Sanchez, Joan (April 6, 1991). "Former Sen. Tower dies in plane crash". Lewiston Morning Tribune. (Idaho). Associated Press. p. 1A. Archived from the original on October 22, 2022. Retrieved October 22, 2022.
Stanley, Edith; Malnic, Eric (April 6, 1991). "23 killed in crash of plane". Eugene Register-Guard. (Oregon). Los Angeles Times. p. 1A. Archived from the original on October 22, 2022. Retrieved October 22, 2022.
Sanchez, Joan (April 6, 1991). "Former Sen. Tower dies in plane crash". Lewiston Morning Tribune. (Idaho). Associated Press. p. 1A. Archived from the original on October 22, 2022. Retrieved October 22, 2022.