Yeadon became a gay activist in the 1960s as a member of Wisconsin's first LGBTQ organization, the Madison Alliance for Homosexual Equality (MAHE).[6] While a university student, he was also active in the Gay Law Student Association. During this time, Yeadon was appointed to the city's Equal Opportunities Commission.[7]
After his initial appointment and subsequent election to the Madison Common Council at the age of 26, Yeadon was instrumental in framing the revised Equal Opportunities Ordinance which extended protections against discrimination in housing and employment to gays.[8] It was a landmark achievement for LGBT rights in Wisconsin and across the nation. Yeadon was considered an authority on municipal gay rights ordinances in the mid-1970s.[9]
Yeadon was the force behind the May 1977 "anti-Anita Bryant Bash" which attracted over 600 people to the Great Hall of the UW-Madison Memorial Union. As a City Council member, he worked on issues such as reforming the city Health Department, completing the State Street mall, legalizing marijuana, and extending bar hours until 2 a.m. A fellow alderman nicknamed him "the alderfaggot". Death threats and letters of encouragement came from across the United States during his time on the council.[10][11]
Yeadon began practicing law in 1975, and after completing his City Council term in 1980 he began specializing in real estate law. In addition to his law practice, he has served as the director of the client rights office in the Wisconsin Department of Health Services Division of Mental Health and Substance Abuse.[12]
