Lexington Mr. Edward B. Kelly, Jr. of Lexington, formerly of Waltham, died Thursday April 8, 2004 in Mount Auburn Hospital, Cambridge. He was 49. Born in Waltham, a son of the late Edward B. and Kathryn A. (Guthro) Kelly, he moved to Lexington in 1984. He worked as an assembler for many years. Mr. Kelly was the nephew of the late Ann Kelly Mr. Kelly is survived by his brother, Thomas J. Kelly of Belmont; two sisters, Kathryn A. Kelly of Waltham and Maryjean Royal of Moundsville, West Virginia; his nieces and nephews, Lisa M. Kelly, Edward F. Kelly, Thomas J. Kelly, Jr. and Kelly J. Royal. A Funeral Mass will be offered at 10 a.m. Wednesday in Our Lady Comforter of the Afflicted Church, 880 Trapelo Road, Waltham. Burial will be in Calvary Cemetery, Waltham. Visitation will be held from 8:30 to 9:30 a.m. Wednesday morning prior to the Funeral Mass in The Joyce Funeral Home, 245 Main Street (Rte.20), Waltham. Memorial donations may be made to The Edinburg Center, 1040 Waltham Street, Lexington, MA 02421.