Mary was the daughter of William H Hummer and Margaret Hoffman both of New Jersey.
Mary was married twice. Her first husband was Adley Brown Laurence (1837 - 1916). Her second husband was William F. McLean. Her full name at the time of death was Mary Bird Hummer Laurence McLean.
Bessie was the daughter of Adley Brown Laurence (1837 - 1916) and Mary Bird Hummer Laurence McLean (1848 - 1938).