John Q. Trojanowski, a renowned neuropathologist and director of the Institute on Aging at the University of Pennsylvania School of Medicine, died of complications of chronic spinal cord injuries on Feb. 8 in Philadelphia. A former summertime renter in Springs, he was 75.

Marisa Jordan Hansell of Lazy Point, Amagansett, a mental health therapist, died of bilateral pulmonary embolism in New York City on March 24. She was 57.

Richard Janis of East Hampton, most recently the dockmaster at the Montauk Lake Club and Marina, died unexpectedly at home on April 6. He was 66.

Richard Hugh Ketcham, who moved to East Hampton after retiring from a 30-year career with IBM in 1985, died on March 19 at the Chautauqua Nursing and Rehabilitation Center in Dunkirk, N.Y. He was 91.