Stanley A. Goldstein, 81, of North Haven, died March 19.  He was the husband of Leonora Goldstein. Born in Bronx, N.Y., he was the son of the late Jack and Rose Goldstein. In addition to his wife, he is survived by his children Marc (Susan) Goldstein of Cromwell and Ellen (Lon) Isaacson of Cheshire, and grandchildren Erica and Allison Goldstein, Sam and Jake Isaacson.