I am posting this again, since I have not had any luck from anything but the 1900 and 1920 Census (eagerly awaiting 1930!).
My Pacelli family immigrated to the US in the late 1800s (the 1900 Census says 1882-1887, the 1920 Census says 1870-1874).
In 1900 they were living at 59 Summitt Street Brooklyn, NY (although, their name was spelled "Pascelli"-not sure if this was an error.) Listed:
Francesco Pascelli: b. June 1846 Italy age 54. He was a day laborer
Wife Jennie Pascelli: b. July 1847 Italy age 52.
Son Joseph Pascelli: b. August 1881 Italy age 18. He was a barber.
Daughter Gracie Pascelli: b. January 1887 age 13. Her occupation had something to do with cloth, but the second word was unreadable. We're not sure what happened to her, but she was the mother of my grandfather Eugene Amaddio who lived with the Pacellis.
Unamed 3rd child (it could be Frank): A third child is listed as living, but not on Summit St.
1920 Census (note, spelling is now "Pacelli": Living at 44 N. Portland Avenue Brooklyn, NY
Joseph Pacelli, age 37 occupation barber and worked in a barber shop.
Wife Viola Pacelli, age 30 (could be 20), born in NY. Mother born in Ireland, father born in NY.
Father of Joseph: Frank Pacelli, age 74
Wife of Frank Pacelli: Jennie Pacelli, age 70
Grandson of Frank and Jennie, Eugene Amaddio
An aunt remembers some additional info: Frank and Jennie died in the early 1920s. The family (possibly Joseph) owned a barbershop, possibly on Knickerbocker Avenue. She also remembers someone in the family owned a fruit store possibly in Coney Island and another may have been a detective. Also, in the early 1930s she remembers being visited by an Uncle Frank on Drew Avenue in Brooklyn. She remembers him having very white hair and was short. She also remembers the name "St Cyr" and an uncle having bad arthritis.
Let me know if there's even any chance of a connection. I cannot locate what happen to these Pacellis! Thanks.