Mary Elizabeth Jennings was born on 2 April 1922 at Lynn, Essex County, Massachusetts.1 She was the daughter of Thomas Francis Jennings and Susan Mae Harding.
Mary Elizabeth Jennings married Louis P. Meconi on 21 August 1945 at St. Catherine's Church, Somerville, Middlesex County, Massachusetts. As of circa 1945,her married name was Mary Elizabeth Meconi.