O'Keefe, John A., of Arlington on June 15, 2023. Beloved husband of Eleanor Ferolito O'Keefe. Loving father to John O'Keefe, Jr. and grandfather to Joey and Jake O'Keefe. Son of the late John and Marie O'Keefe. Dear brother-in-law to Elaine and Fred Buckley and the late Patricia Ronan. Also survived by many loving nieces and nephews, family members, friends and neighbors. John enjoyed many travel trips with Ellie and family. Prior to retirement, John worked as a security officer at John Hancock in Boston. Family and friends are invited to visit at the DeVito Funeral Home 1145 Mass. Ave., ARLINGTON on Wednesday June 21st from 10:00am to 11:00am. A funeral mass will be held at 11:30 in the St. Agnes Church. Interment to follow at St. Paul Cemetery on Broadway in Arlington. In lieu of flowers, donations in John's name may be made to the Jimmy fund at jimmyfund.org.