Mary S. Gustina, age 81, of Plain City, Ohio, died on Monday, October 5, 2020. Born in Winchester, MA to the late William P. and Anna C. Supple, Mary was a graduate of Regis College and spent her career in microbiology and infection control at various hospitals. In addition to her parents, Mary was preceded in death by her sister Anna Supple. She is survived by her beloved husband of 34 ½ years, Greg Gustina, her sister Margaret “Maggie” Kirby of Portland, ME, her nieces and nephews and the loving members of the Gustina Family. Mary was a faithful parishioner of ST. BRIGID OF KILDARE CATHOLIC CHURCH, 7179 Avery Road, Dublin, OH 43017 where her Mass of Christian Burial will be celebrated 11:00a.m. MONDAY, OCTOBER 12, 2020 with The Reverend Monsignor Joseph M. Hendricks, Celebrant. Burial will follow at Forest Grove Cemetery, Plain City, Ohio. Due to the Covid-19 Pandemic, Social Distancing will be observed and facial coverings are required at the Church. Memorial Contributions may be made to St. Brigid of Kildare School Endowment Fund, 7179 Avery Road, Dublin, OH 43017. The TIDD FUNERAL HOME, DUBLIN-PLAIN CITY CHAPEL, 9720 SR 161, Plain City, OH 43026 (614)-733-0080, assisted the family. Please share a favorite memory of Mary on this website or send your condolences to her family: www.tiddfuneralhomes.com.