HERON, Patricia A. "Patti" (Wheaton) Of Stow, formerly of Lexington, March 17, 2013. Beloved daughter of Graydon M. Wheaton of Lexington & the late Iris G. (Ellis) Wheaton. Dear sister of Sandra E. Lechiaro & her husband Joseph of Framingham, life partner of Hector Constantzos of Stow, her dear friends Alan Lavender of Norwood & Jim Dunlap of Stow, also survived by her aunts & cousins. Funeral services will be held at the Douglass Funeral Home, 51 Worthen Rd., LEXINGTON, on Friday, March 22, at 10 a.m. Relatives & friends are kindly invited to attend visiting hours on Thursday from 4-8 p.m. In lieu of flowers donations in her memory may be made to the MSPCA, 350 South Huntington Ave., Boston, MA 02130. Interment Westview Cemetery, Lexington.