Grace was born to Patrick and Hannah Dougherty Gallagher in Scotland April 20, 1880 (though death certificate states the birth year as 1881?). Grace was married to James Silverthorne. On January 31, 1930, Grace was admitted to Hahnemann Hospital where she underwent two surgeries on February 25, 1930 and March 18, 1930. Grace died at he hospital on March 20, 1930. The procedure listed was a Nephrostomy. The final cause of death is listed as Chronic Myocarditis. Grace was interred at Holy Sepulchre Cemetery on March 24, 1930.