The death certificate of her daughter Nellie provides information, giving Mary’s name as Mary L. Hendershot and giving location of Mary’s birth as Buck Valley, Pennsylvania.

Mary’s date of birth, name as Mary Elizabeth Hendershot, parents and marriage date from Karen Gaughan, email message to Thomas Moore on 10 April 1995.

1910 U.S. Census, State of Pennsylvania, County of Westmoreland, Scottsdale Borough
Enumeration District 191, Sheet 8A
319 Broadway
Dwelling 140, Household 151
Davis, Madison, head, male, white, 45, married one time, married for 8 years, born in Virginia, both parents born in Virginia, speaks English, laborer in furnace, wage worker, can read and write, rents, lives in a house
Davis, Mary, wife, female, white, 42, married one time, married for 8 years, mother of 3 children of whom 1 survives, born in Pennsylvania, both parents born in Pennsylvania, speaks English, no occupation, can read and write
Davis, Nellie, daughter, female, white, 7, single, born in Pennsylvania, father born in Virginia, mother born in Pennsylvania, no occupation, in school

1920 U.S. Census, State of Pennsylvania, County of Fulton, Union Township
Enumeration District 58, Sheet 6A
Dwelling 109, Household 114
Davis, Madison, head, rents, male, white, 55, married, can read and write, born in Virginia, both parents born in Virginia, speaks English, manager in poultry yard, works on own account
Davis, Mary L., wife, female, white, 52, married, can read and write, born in Pennsylvania, father born in Pennsylvania, mother born in Maryland, speaks English, no occupation
Parlett, John C., boarder, male, white, 79, widowed, can read and write, born in Maryland, father born in England and spoke English, mother born in Germany and spoke German, speaks English, shoemaker in own shop, works on own account