Waltham - Mr. Glen G. Davis, of Waltham, died Sunday, August 31, 2008 at Presentation Manor Nursing Home in Brighton. He was 56. Born in Boston, a son of Mary M. (Enos) Davis of Waltham and Stillman F. Davis, Glen was an assistant press operator for Potter Press Company in Waltham for many years. In addition to his mother, Glen leaves one brother, Robert F. Davis and his wife, Dianne, of Waltham; one sister, Sheila J. Landry and her husband, Joseph, of Swanzey, New Hampshire; one aunt, Margaret P. Perry of Waltham; and his nieces and nephew, Robert A. Davis, Jennifer J. Davis, Lisa J. LaFave and Rhonda Babcock. Relatives and friends are invited to attend the Funeral Thursday at 9 a.m. from The Joyce Funeral Home, 245 Main Street (Rte.20), Waltham followed by a Funeral Mass in Saint Mary's Church, 133 School Street, Waltham at 10 a.m. Burial will be in Mount Feake Cemetery, Waltham. Visiting hours will be held on Wednesday from 4 to 7 p.m.