^Wisconsin Legislative Reference Bureau (1979).
"Biographies"(PDF). In Theobald, H. Rupert; Robbins, Patricia V. (eds.).
The state of Wisconsin 1979-1980 Blue Book (Report). State of Wisconsin. pp. 32–33. Retrieved February 11, 2021.
^Wisconsin Legislative Reference Bureau (1981).
"Biographies"(PDF). In Theobald, H. Rupert; Robbins, Patricia V. (eds.).
The state of Wisconsin 1981-1982 Blue Book (Report). State of Wisconsin. pp. 32–33. Retrieved February 11, 2021.
^Wisconsin Legislative Reference Bureau (1983).
"Biographies"(PDF). In Theobald, H. Rupert; Robbins, Patricia V. (eds.).
The state of Wisconsin 1983-1984 Blue Book (Report). State of Wisconsin. pp. 36–37. Retrieved February 11, 2021.
^Wisconsin Legislative Reference Bureau (1991).
"Biographies"(PDF). In Barish, Lawrence S.; Theobald, H. Rupert (eds.).
State of Wisconsin 1991-1992 Blue Book (Report). State of Wisconsin. pp. 32–33. Retrieved February 11, 2021.
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Wisconsin Legislature. December 1, 2003. Retrieved February 11, 2021.
^"Oath of Office". State of Wisconsin Assembly Journal. Ninety-Sixth Regular Session (Tuesday, February 3, 2004).
Wisconsin Legislature. February 3, 2004. Retrieved February 11, 2021.
^"Communications". State of Wisconsin Assembly Journal. One-Hundredth Regular Session (Thursday, July 5, 2012).
Wisconsin Legislature. July 5, 2012. Retrieved February 11, 2021.
^"Communications". State of Wisconsin Assembly Journal. One-Hundred and Fourth Regular Session (Tuesday, June 30, 2020).
Wisconsin Legislature. June 30, 2020. Retrieved February 11, 2021.