Ms. Armstrong is a founding member of Consumers Council of Missouri and its predecessor, the Utilities Consumer Council of Missouri. She retired from the board in 2023 and is the first Consumers Council board member to be awarded the status of “board member emeritus.” A fearless advocate, she was the executive director of the American Civil Liberties Union of Eastern Missouri for 26 years. She has served on the board of the Great Rivers Environmental Law Center, and was a founding member and secretary/treasurer of the St. Louis Beacon, an on-line newspaper.