Theda Lichtenfelt, 99 years and seven months, of Imlay City, MI died Saturday, September 26, 2020 at Angela’s House Assisted Living of Imlay City. Theda M. Keyes was born February 26, 1921 in Marlette, MI. She was the daughter of the late Elmer J. and Myra B. (Brown) Keyes. Theda grew up in Marlette and was a graduate of Marlette High School, Class of 1937. She attended Michigan State College from 1938 Р1942 where she earned her Bachelor of Science Degree in Home Economics. She married Lawrence Edward Lichtenfelt on July 10, 1943 in Davis, CA. Theda and Larry had lived in Marlette, Attica and Florida.

She taught school in Imlay City, Elkton, Brown City, Marlette and at Lapeer West High School. Theda retired from teaching and became the office manager of Muir Insurance Agency in Imlay City, which they owned. Theda and Larry were members of the Imlay City United Methodist Church and Trinity United Methodist Church of Lapeer. She was a member of the Philomathean Club in Marlette, the New Era Club in Imlay City, the Marlette Historical Society and the Imlay City Historical Society.

Theda is survived by her daughter, Kay Lichtenfelt of Almont; sons, Dennis Lichtenfelt of Attica and David (Deborah) Lichtenfelt of Greenville, SC; and a sister, Anne Rasmussen of Clarkston, MI. Also surviving are eight grandchildren and ten great-grandchildren.

Theda was preceded in death by her husband; a brother, Allen E. Keyes; and recently, by her son, Sidney of North Dakota.

Funeral arrangements have been entrusted to Muir Brothers Funeral Home of Imlay City, 225 N. Main Street, Imlay City, MI. The family is planning for the burial of her cremated remains to take place later in the fall at Marlette Cemetery.

Those wishing to make memorial contributions may direct them to Imlay City Historical Society, 77 N. Main Street, Imlay City, MI 48444 or Marlette Historical Society, c/o 5050 Reynolds Rd., Marlette, MI 48453.

Please be sure to sign the online register book at to share your memories and condolences with the Lichtenfelt family.