Dr. Otis K. Dewan Jr. of East Falmouth, a retired oral surgeon and lifelong athlete, died July 4 at Falmouth Hospital from complications of COVID-19. Dr. Dewan, 86, was known as Ky.

Originally from New York, he graduated from Whitesboro Central High School, where he excelled in academics and athletics. A member of the varsity football and track and field teams, in his senior year he won the all-state championship in the 100- and 220-yard dashes.

After earning his undergraduate degree in bio-chemistry at Harvard College, he graduated from the Harvard School of Dental Medicine and then completed his fellowship in oral surgery at the Mayo Clinic in Rochester, Minnesota.

While at Harvard, he played varsity football and was the Dunster House boxing champion. He was also known for his skills as a fast-pitch softball pitcher, playing in various men’s leagues during his fellowship in Minnesota, and then back in Massachusetts. He would later participate as a baseball coach for his son’s baseball teams.

During the Vietnam War, Dr. Dewan enlisted in the United States Air Force and was permanently assigned as Chief Oral Surgeon at Otis Air Force Base in Bourne.

A member of the Harbor Head Tennis Club in West Falmouth for years, it was through tennis that the widowed Dr. Dewan met Mary DuWors and he would remarry. They couple shared an active lifestyle that encompassed snowshoeing, hiking and more—in addition to playing tennis.

In addition to Mary DuWors Dewan, he leaves his daughter from his marriage to the late Phyllis (Claus) Dewan, Lisa Kroah of Annapolis, Maryland; his stepson, Brad Mahoney of Boston and West Falmouth; his stepdaughter, Amanda Mahoney Kuhn of Fort Collins, Colorado; six grandchildren; and other family.

He was preceded in death by his son, Otis K. Dewan III, whose mother was Phyllis Dewan.

Visiting hours are planned for Sunday, July 19, from 2 to 7 PM at Chapman, Cole & Gleason Funeral Home, 584 West Falmouth Highway.

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