Harry E. Heller of Springs, who had careers in aviation engineering, advertising, and public opinion research, died on Dec. 29 in Philadelphia. He was 90.

Leroy Kayser of East Hampton, a former systems analyst for Federated Department Stores, died on Jan. 19 at the age of 99.

Patricia Smith, a speech pathologist and chairwoman of the committee on special education at the Bridgehampton School, died on Sunday at Stony Brook Southampton Hospital. She was 74.