Dennis B. Poster, 82, of Westport, Conn., died at home on June 24. Born in Syracuse, N.Y., he was the son of Dr. Marvin and Marion Poster on June 20, 1940. He is survived by his wife, Joan, of 57 years; two daughters, Meredith and Cindy (David) of Westport, Conn.; six grandchildren, Hannah, Lillie, Matthew, Max, Jack and Sam; a  brother, Greg; and a sister, Wendy.