On Thursday, December 17th, 2020, heaven gained an angel when Mary Francis Doyle, beloved daughter, sister, aunt, and friend, passed away unexpectedly in her home at the age of 54. Mary was born July 27th, 1966 in Munster, IN.  She was preceded in death by her father Patrick Doyle. She is survived by her mother Kathleen Loktu, sister Christine (Jay) Thomas, nephew Patrick Thomas, and niece Margaret Thomas. She graduated from Munster High School and later Indiana University in Bloomington. Mary was an avid animal lover and volunteered for the Anti-Cruelty Society. She loved to ski and run; she completed the Chicago Marathon as well as several other smaller runs while raising money for charity. In lieu of flowers, the family asks for donations to be made to PAWS Chicago or Hospice of the Calumet Area. There is no service currently planned, but the family plans to have a celebration of life in the future.