Henriette de Sieyes Montgomery, a devoted environmentalist who headed the board of Group for the South Fork, now known as Group for the East End, for several years in the 1980s and 1990s, died on Sept. 26 at her apartment in Manhattan. She was 93 and had been in declining health.
Louise Riker Edmonds, a Latin teacher at the Masters School in Dobbs Ferry, N.Y., for 42 years, died on Sept. 27 at the Sunrise at Ivey Ridge assisted living home in Alpharetta, Ga., where she had recently moved.
Angelina Anna Ross of Sagaponack died on Sept. 30 at the Kanas Center for Hospice Care in Westhampton Beach. She was 73 and had had pancreatic cancer for four years. Donna Ross Levy said her mother had responded well to chemotherapy and survived longer than most who have that illness. “She was a fighter, very strong willed,” Ms. Levy said.
Henrik Krogius, an Emmy Award-winning journalist, writer, and producer for television news who was instrumental in preserving the Poxabogue area of Sagaponack, died at home in Brooklyn Heights on Oct. 4. He was 87 and had prostate cancer, his family said.
Charles Sheridan Preusse, a former East Hampton resident who served in the Air Force and had a career at the New York Stock Exchange, died on Oct. 3 at the home of one of his sons in Frederick, Md. He was 76 and had pancreatic cancer.
Klaus Kertess, a curator, writer, and art dealer whose enduring influence in the art world began 50 years ago when he opened the Bykert Gallery on East 81st Street, died of a heart attack at home in Manhattan on Saturday.
Suzanne Ellen Goell, a pianist who had written art and music reviews for The West End Word, a community newspaper in St. Louis, eventually becoming its managing editor and publisher, died at home on Hand’s Creek Road in East Hampton on Sept. 12 of heart failure.
Mary H. Mulholland had been in failing health for a while, but according to her daughter Brigitte M. Lenihan of Springs, that didn’t keep her from enjoying her 89th birthday party, which 50 people attended. She died at home in Springs almost three weeks later, on Sept. 26.