Pierce was born and grew up in Jonesboro, Ark. After he graduated from Jonesboro High School he went to work for the Frisco Railroad and moved to Thayer. He spent 50 years working as a conductor on freight trains between Thayer and Memphis.
After his retirement, Pierce was elected mayor of Thayer in 1977. He severed as mayor for 12 years and during that time brought many improvements to the city.
He was mayor in 1982 when the city celebrated its Centennial.
William R. Hass was city attorney, Eugene Croney was city clerk, Ira Goans was superintendent of utilities, Lawrence Lowther was chief of police, Lawrence Combs was street commissioner, Bill Lohr was cemetery sexton and Dwight Robinson was fire chief.
Aldermen at that time were Pat Paulson, Ray Best, John Reeves and Buddy Rogers.
Rogers is the only remaining alderman who served under Mayor Pierce.
"A.D. was a good mayor and a good man," Rogers said. He said Mayor Pierce helped get the Green Town Block Grant that helped re-build some of the houses in that portion of Thayer, as well as pave new streets and curbs in Green Town.
During his life in Thayer, he served on many committees and boards including: chairman emeritus of the South Central Council of Governments, chair of the South Missouri Rehabilitation Center, Missouri State Board of Health, Ozark Action Board and chairman of the Oregon County Health Department.
He received the Man of the Year Award from the Elk's Club in 1983 and the Outstanding Service Award from the Thayer Chamber of Commerce.
Mayor Pierce served on the Oregon County Democratic Committee since 1945. He was a life long Democrat and spent much time and energy to help fellow Democrats get elected to office not only in Thayer but around Oregon County and the state.
He was a member of St. Paul United Methodist Church in Thayer and belonged to Clifton Masonic Lodge 463.
His wife Marguerite died in 2003. His daughter Drusilla Hyde Martin lives in West Plains. He has four grandchildren and 10 great-grandchildren.
Funeral services for Mayor Pierce were held June 28 at the Carter Funeral Home in Thayer. He was buried in the Thayer Cemetery.