On Friday, September 10, William (Bill) E. Colleran Jr. passed away of natural causes at Rivercrest in Concord. He was 91. Born and raised in Medford, MA he was the son of the late William E. Colleran and Margaret (Kiley) Colleran. As a youth, Bill was an active member of the St. Joseph's Parish CYO, both as a member of the band where he played the clarinet and as a player on the basketball team. His team won many city and CYO tournaments and he loved to reminisce about them all. He attended Medford High School, where at the age of 17 he was a 1947 graduate and a proud member of the Mustang's basketball team. Following his graduation from high school, Bill worked as a bookkeeper for a local business before his enrollment at Northeastern University where he studied accounting. He was a member of the Huskies basketball team and forged a lifelong connection with the program as an avid supporter of it and the university. He completed his degree in 1953. A United States Army Veteran, he served as a member of the First Armored Division during the Korean Conflict. After his discharge from the Army in 1955, Bill attended the University of Massachusetts Amherst where he earned his MBA, leading to the start of his professional career, where he was employed by the Government Accounting Office as an auditor. In 1960, Bill married Phyllis (Comperchio) Colleran. The two had a 61-year romance where they initially lived in Peabody before settling down in Concord, MA where they raised their family. Bill served in in various positions as a government contractor, working for companies such as Raytheon as a comptroller in both Bedford and Wayland, General Dynamics, Helio Equipment Corporation and Barry Controls. He also served as the Town Accountant of Concord for a period during the 1970's He was an avid supporter of his children, spending countless hours working with them on school- work as well as any and all activities they participated in. If there was an event they were at, he was always there. In addition to the Northeastern Huskies, Bill was a fan of all the Boston sports teams but especially the Boston Celtics. He was an active member of the Concord Minuteman, taking part in many parades during annual commemorative celebrations such as Patriots Day and the Bicentennial in 1975. Additionally, he was a member of the St. Bernard's Knights of Columbus Council 287, where he spent many hours with his friends during charitable events and watching sports. Bill was a prolific pool player, having honed his game at the Medford Square Café as a youth and later in the confines of the Concord Knights. Later in life he and Phyllis moved to Sun City Center, FL, where the two were active in the community as well as at Prince of Peace Catholic Church. Bill served as the Grand Knight of Council 7282, was active in investment clubs and gathered with friends to play cards and watch sports. In late 2015, the two returned to Concord to be near their children, moving to Newbury Court in Concord in 2018. He will be remembered for his story telling, his intellect, his devout faith and his ever-present belly laugh. He is survived by his loving wife Phyllis Colleran of Concord, his two daughters, Maryanne Bowe of Westwood and Elisabeth Sannicandro of Concord as well as his son William E. Colleran III also of Concord. He leaves behind a sister Doris Ingegneri of Dover as well as a legacy of eight grandchildren. Family and friends will celebrate Bill's life during visiting hours on Friday, September 17th from 4 to 6 pm in the Dee Funeral Home, 27 Bedford Street, Concord Center. His Funeral Mass will be celebrated on Saturday, September 18th at 11 am in Holy Family Parish, Monument Square, Concord Center. Concord's Town Flag will fly at half-staff on Saturday, September 18th in recognition of Bill's faithful and honorable service in the United States Army. Arrangements are under the care of Dee Funeral Home & Cremation Service of Concord.