Cohen, Sydney on Friday March 20, 2015 of Rochester, NH formerly of Chelsea, MA at 91 years of age. For 58 years he was the beloved husband of Rebecca (Rosenfeld). Loving father of David and Sandra Cohen, Arlene Kent, and Lori and Michael Ardai. Cherished grandfather of Marci, Brian, and Jared Cohen, Erica and Greg Woodward, and Alyssa and Vanessa Ardai. Adored great-grandfather of Raelynn Woodward. Dear brother of the late Richard Cohen, Charlotte Sobelman, Theodore Cohen, and Leonard Cohen. He leaves behind many nieces and nephews. Service at Torf Funeral Chapel, 151 Washington Ave, Chelsea MA, on Tuesday March 24 at 1 pm. Interment to follow at Poali Zedek Cemetery, Everett MA. Memorial observance following interment at the home of David and Sandra Cohen until 7 pm. A memorial service is planned for late spring in New Hampshire. In lieu of flowers, donations may be made to Cornerstone VNA, 178 Farmington Road, Rochester NH, 03867 or to Wounded Warrior Project, PO Box 758517, Topeka, KS, 66675, or to American Heart Association, PO Box 417005, Boston, MA, 02251-7005.