Mr. Alfred G. Dierkes age 89, of Quincy died on Saturday, November 9, 2019 in Blessing Hospital. Al was born September 8, 1930 in Quincy, a son of John A. and Elizabeth T. (Koch) Dierkes. He married Kay Frances Muegge on November 10, 1956 in Quincy’s St. John the Baptist Catholic Church, and she preceded him in death on January 26, 2016.

He was a 1948 graduate of Notre Dame High School. He served in the U.S. Army during the Korean War.

Professionally, Al was an architect. Following graduation from the University of Illinois Champaign, he began his career by starting his own firm. He then went on to work with Hafner, Stranckmeyer; and from 1968-1982 for Hafner, Dierkes and Flachs. The firm became Hafner & Dierkes , and then in 1983, Al co-founded Architechnics, where he was a partner until his retirement in 2002. He enjoyed driving by his projects with his children and grandchildren that he had helped design, from local health care facilities, to schools and many other local buildings.

He was an active member of St. Anthony of Padua Catholic Church. Al was a member of the American Institute of Architects; a 55+ year member of the Kiwanis Club; a member of the National Audubon Society and he participated annually with the local bird count, serving as count coordinator. Al participated in sports for many years of his life and was inducted into the Notre Dame Hall of Fame for the 1944 Football Team. Al played baseball at U of I and was a die-hard Cubs fan. He also was a big fan of the Fighting Illini and the Chicago Bears. He and Kay shared a love of traveling, and together had visited 50 states and 19 countries.

Survivors include his children, Dena M. Dierkes-Knipe and her husband Tim of Quincy; Alec Dierkes and his wife Kathy of Chatham, IL; four grandchildren, Kayla, Austin and Adam Dierkes and Jaden Knipe; a brother, James Dierkes of Foster City, CA and a sister, Mary Cary of Quincy. Nieces, nephews and cousins also survive.

He was preceded in death by his parents, his wife, and a brother, John Dierkes.

A Mass of Christian Burial will be Saturday, November 16, 2019 at 10:00 a.m. in St. Anthony of Padua Catholic Church. Interment will be in Calvary Cemetery. Visitation will be Saturday morning from 9:00 a.m. until 10:00 a.m. in St. Anthony of Padua Catholic Church. Memorials are suggested to St. Anthony Church, the Ladies of Charity or Quincy Notre Dame High School.