Jeff Harris Blackman, age 54, of Natick, formerly of Waltham, passed away on Thursday, August 9, 2012. Beloved son of the late Milton and Harriette (Feldman) Blackman. Loving brother of Beverly Rosendorf and Gayle Blackman. Dear uncle of Glenda Lombard and Michelle Hendrix and great uncle of Matthew and Hayden Noyes. Graveside services at Beth Israel Memorial Park, 212 South Street, Waltham on Sunday August 12 at 2:00 pm. Following the service, memorial observance will be at Beverly’s home until 8:00 pm. In lieu of flowers, remembrances may be made to American Diabetes Association, 10 Speen Street, 2nd Floor, Framingham, MA 01701.