Susanna was the youngest of five daughters of Patrick Dever and Susanna Harrity Dever. She was baptised on Aug. 4, 1861 at St. John the Evangelist Roman Catholic Church in Lambertville. Her sponsors were James Campion and Letitia Colegan.
Her father passed away on Nov. 6, 1862 while serving in the Civil War.
Little Susanna died of measles and was buried on Mar. 14, 1864 from St. John's Church.