Robert M. Cooper, who “represented the best of Bonac” and ran the Cooper Trenching Corporation for more than 30 years, died at age 80 on Saturday at Stony Brook Southampton Hospital.

Mary A. Hyer, who had a 20-year career with Bridgehampton National Bank and volunteered with the Most Holy Trinity Catholic Church outreach program, died on Jan. 30 at Stony Brook Southampton Hospital. A 44-year resident of Amagansett and East Hampton, she was 91.

Loretta Grabowski of East Hampton, a skilled baker popular with the neighborhood children, died on Saturday at the San Simeon by the Sound nursing home in Greenport. She was 91.

Margaret Frances Samet, a medical laboratory manager and interior decorator who lived in Amagansett and East Hampton after retiring, died on Dec. 10. She was 96.