JOHNSON, Martha A., 73, of Cambridge, passed away peacefully at her home on April 16, 2021 after a long battle with cancer. Born in Cambridge, MA on June 24, 1947, she was the daughter of the late Philip Johnson and Martha (Leahy) Baia. She was a lifelong resident of Cambridge, a city in which she loved and worked. She is survived by her daughter Mary Angier, and her grandson Anthony Cyrus, Cambridge FF. Beloved sister to her brothers Philip Johnson and Robert Baia, her sisters Kathleen Skillman and her husband peter, Linda O’Brien and her husband Joe, and JoAnn Hill. She is also survived by her two great grandsons and many loving nieces, nephews, and cousins. She was predeceased by her son Jimmy Johnson, her brother William Johnson, and her sister Janice Johnson. A Visitation will be held in St. John’s Church, 2254 Mass Ave, NORTH CAMBRIDGE, on Friday from 10am-11am. Her Funeral Mass will immediately follow in the Church at 11am. All attendees are required to wear face coverings and practice social distancing. Burial will be private. In lieu of flowers, donations in Martha’s memory may be made to a charity of your choice. For directions or to send an online condolence visit www.keefefuneralhome.com.