Jon Hahnfeldt, 62, of Stamford, died April 18, 2010, of a brain aneurysm.

He was well known in Connecticut and throughout the U.S. as a swimming and diving coach. Hahnfeldt's Greenwich High School divers are the reigning Connecticut State champions and he was honored as the 2009 Connecticut Diving Coach of the Year. In 40 years, he coached hundreds of diving champions. Hahnfeldt was a high school and collegiate All-American diver and winner of numerous state and national competitions.

Hahnfeldt is survived by his brothers, Ed, Don and Fred; a sister, Suzan; and many close friends in his extended family in Connecticut.

A memorial service took place at the First Congregational Church of Greenwich, 108 Sound Beach Ave., Old Greenwich, on April 20.

Condolences may be sent to Suzan Hahnfeldt, 1396 Work Drive, Sigel, Pa. 15860.