Frank E. Mueller, age 75, passed away on June 10, 2025, in St. Louis, Missouri. Born on April 21, 1950, in Chicago, Illinois, Frank was the beloved son of Lorraine (Anderson) and Frank J. Mueller.
Frank was a proud graduate of Mather High School and the University of Illinois Chicago. He went on to earn a Master of Science degree in Engineering from the University of Texas. Frank honorably served his country as a member of the United States Army in Europe.
Throughout his professional life, Frank worked as a land surveyor and mail carrier before dedicating 25 years to a distinguished career with the Department of Defense.
Frank is lovingly remembered by his brothers, Tom (Linda) and Jim (Ginny); his sister, Nancy; his nephew, Scott; his nieces, Jennifer and Jessica; his grand-nephews, Hudson, Benny, Caleb, and Emmet; and his grand-niece, Addison.
Frank had a passion for sports and puzzles, and he valued physical fitness throughout his life.
He will be deeply missed by his family and all who knew him.