Cornwall-on-Hudson, New York
Madeline Joan McMahon Lamb Flatt
1932 — 2022
Madeline Joan McMahon Lamb Flatt, passed away peacefully at home with hospice care on October 5, 2022. She had many friends and was a well-loved member of her community as she shared her love for literacy and the arts. Joan was born on July 15, 1932 to Madeline Dederick McMahon and Daniel Francis McMahon in Cornwall-on-Hudson, New York. She was raised in the Hudson River Valley and graduated from Mount St. Mary's Academy in Newburgh, New York. After receiving academic scholarships, Joan attended both Ladycliff College and Spencer College. After her children were raised, she attended SMU, University of Dallas, and graduated with high honors from the University of Texas at Dallas with a...