Isaac Osaretin Uwumangbe

Isaac Osaretin Uwumangbe, age 75 and a resident of Chelmsford, passed away peacefully on Thursday, October 30, 2025, surrounded by his loving family. He was the beloved husband of Ann Ojiugo (Mbadinuju) Uwumangbe, with whom he shared 47 years of marriage.
Isaac was born on January 30, 1950, in Benin City, Nigeria, to the late Benjamin U. and Christina (Iguowobia) Igunbor. He spent his formative years in Benin City, where he lived most of his life before relocating to the United States in 2024. Isaac attended Western Boys High School, Ikpoba Hill, where he graduated at the top of his class. He went on to earn an associate's degree in accounting, which paved the way for his career in corporate accounting.
After completing his education, Isaac began working in 1975 as a corporate accountant for Dumez Nigeria PLC, a civil construction company. He dedicated over 35 years to the company, marking milestones such as purchasing his first vehicle-a Peugeot pickup truck-in 1976 and becoming a proud homeowner in 1980. Upon retiring from Dumez Nigeria PLC in 2005, Isaac founded Osaigho and Sons Ltd., a civil engineering company. For 15 years, he served as general manager and chief executive officer, overseeing the construction of roads, monuments, and residential and commercial buildings across southern Nigeria.
Isaac met his beloved wife, Ann, in 1976 during a bus ride from Benin City to Onitsha, Nigeria. Their instant connection led to their marriage on September 2, 1978. Together, they built a loving home and raised six children, nurturing an environment filled with devotion and warmth for family and friends alike.
Isaac is survived by his loving wife Ann, his children, and grandchildren:
• Ighodaro Martins (Emose) Osaretin of Oshawa, Canada, and children Leonidas, Brian, and Sean-Carter
• Idahosa Andrew (Khyla) Osaretin of Chelmsford, MA, and children Nosa, Aken, and Eben
• Osadebamwen Chinyere (Nnamdi) Adinde of London, UK, and children Alexandra and Hugo
• Osasere Chidinma (Osarumwense) Elaiho of Toronto, Canada, and children Aisosa, Oghosa, and Omoze
• Osaretin Isaac (Yeaniris) Osaretin of Grand Rapids, MI
• Nosakhare Clinton (Jasmine) Osaretin of Macomb, MI, and children Omase and Isaac
He is also survived by many cherished siblings, nieces, nephews, cousins, and in-laws. Isaac was predeceased by his parents and his brother, Richard, of Benin City, Nigeria.
Isaac was an avid sports fan, finding joy in spending time with his family while watching a variety of sports. He especially loved cheering for the Arsenal Football Club and enjoyed watching wrestling on television with his grandchildren. A sincerely devoted Christian, Isaac was a loving husband, a doting father and grandfather, and a kind, generous man to everyone he met. His memory will forever be cherished by his family, friends, and all who were fortunate enough to know him. He will be deeply missed and never forgotten.
Visiting hours will be held on Wednesday, November 19, 2025, from 4 PM to 7 PM at the Blake Chelmsford Funeral Home, located at 24 Worthen St., Chelmsford. The funeral service will take place at the funeral home on Thursday, November 20, 2025, from 9 AM to 11 AM, followed by interment at Pine Ridge Cemetery, Chelmsford.