Dr. David Allen Crothamel, 91, of Lake Ariel, passed away Wednesday morning at Julia Ribaudo Extended Care Center, Lake Ariel.

Born in Scranton on March 4, 1931, he was the son of the late Allen and Sarah Williams-Crothamel. He earned his doctorate degree in mathematics from the University of Michigan. Throughout his professional career, he taught at Bloomsburg University, the University of Scranton, the Pennsylvania State University, Keystone College and Lackawanna Trail High School. He taught his last 20 years at West Point Military Academy Prep School and served as the head of the Math Department. He was a United States Army veteran.

David leaves behind his son, Allen Crothamel; daughters, Michiyo Vangellow and Tomiko Prichard; grandchildren and great-grandchildren. He is preceded in death by his sister, Mary Fumanti.

Funeral services will be private and at the convenience of the family. Arrangements have been entrusted to and are under the care and direction of James Wilson Funeral Home, Lake Ariel.

To share a memory or to leave a condolence for the family, please visit www.jameswilsonfuneralhome.com.