Thank you for your kind offer! My great-grandmother, Mary Revallo (or Revalo) was listed as residing at St. John's Hospital on January 17, 1920 when the 1920 Census was taken. Her relationship to the "head of household" or Hospital Superintendent, Sister M. Amadeus, was "inmate" and occupation was listed as "kitchen girl," industry "hospital." Mary was 36 years old at the time and married to Gabriel Revallo. I would appreciate any information that you find. Thanks again!!