O’ROURKE, Lawrence “Larry”, of Chelmsford, formerly of Waltham and Cambridge, passed away peacefully on August 16, 2023. Beloved son of the late Lawrence O’Rourke and Dorothy A. (Maguire). Loving brother of Judith Sullivan and her husband Lawrence of Billerica, Susan O’Rourke of Chelmsford, and Timothy O’Rourke of Arlington. Devoted uncle of Brian Sullivan of Billerica, Robert Sullivan and his wife Erica of Billerica, and Amy DeRocco and her husband John of Hudson, NH. Great uncle of Daniel, Nathan, Jared, Kaylie, and Lauren. He is also survived by many loving relatives and friends. His family would like to express their gratitude and appreciation to the staff and residents at the Harding Street Group Home for the care they gave to Larry each day. His Visitation will be held in Saint John Church, 2254 Mass Ave, NORTH CAMBRIDGE on Wednesday, August 23rd from 10AM - 11AM. His Funeral mass will immediately follow in the church at 11AM. Relatives and friends invited to attend. Burial will follow in Cambridge Cemetery. In lieu of flowers, donations may be made to a charity of your choice. For directions or to send an online message of condolence please visit www.keefefuneralhome.com.