When Frank Spooner Churchill was born on 28 August 1864, in Milton, Norfolk, Massachusetts, United States, his father, Charles M L Churchill, was 39 and his mother, Susan Elizabeth Spooner, was 33. He married Lucretia Mott Hallowell on 31 December 1894, in West Medford, Medford, Middlesex, Massachusetts, United States. They were the parents of at least 2 sons and 1 daughter. He lived in Massachusetts, United States in 1870 and Chicago, Cook, Illinois, United States for about 10 years. He died on 27 February 1946, in Boston, Suffolk, Massachusetts, United States, at the age of 81, and was buried in Old Quaker Meetinghouse, Sandwich, Barnstable, Massachusetts, United States.