Stanley Isenstein, 81, of Lexington, Ky., formerly of Milford, died July 18. He was the widow of Keitha.  Born in Boston, Mass., he was the son of Morris and Gertrude Isenstein. Stanley was a long time resident of Milford, Connecticut. He was preceded in death by his wife, Keitha, in 1988. He is survived by his children and their families: Peric Isenstein and his wife Alison and their children Dr. Batel Isenstein and Kenneth Isenstein, Daniel Isenstein and his wife Patricia and their daughter Raya Isenstein, Jonathan Isenstein and his wife Bonnie Peschell and their children Ryan and Marshal Peschell-Trosan, Dr. Devorah Kennedy and her children Mai-Tal and Dotan Kennedy; and his brothers, Herman of Milford, and Joseph of West Palm Beach, Fla.