Gustav Fleischmann III Obituary

With sadness, we share the passing of Gustav Fleischmann III (Waltham, Massachusetts). Gustav, born on November 9, 1926, passed away on September 23, 2026. Family and friends are welcome to leave their condolences on this memorial page and share them with the family.

Family, friends, and acquaintances remember Gustav for his warmth, thoughtfulness, and the moments shared together. While he will be deeply missed, the influence he had on the lives around him remains. Loved ones will reflect on the time spent together. Gustav’s memory will live on in the hearts of friends and family, a lasting reminder of the connections and experiences he brought to the world.

He was predeceased by: his father Gustav Fleischmann Jr.; his wife Una Hayes Fleischmann; and his parent Marion Timmons Fleischmann (Timmons). He is survived by: his daughter Susan (Bill Erickson); his grandchild Timmons (Kaila); his daughter Dr. Katharine Hayes Fleischmann; his grandchildren, Kayla Bruce (Adam Kline), Christian Bruce and Gustav "Chip" Fleischmann IV (Sandy); and his great grandchild Patrick. He is also survived by five grandchildren, and three great grandchildren.

In lieu of flowers, donations may be made to the Weston Council on Aging, 20 Alphabet Lane, Weston, MA 02493.