The Adamo's you mention were my grandparents on my mother's side. They eventually lived in Manhattan - 432 W. 43rd St - it's no longer there as it has been torn down for high rise buildings. Vito Adamo came to America in about 1880 and sent money back to Palermo to his wife and children. They had two sons who both became priests - Joseph and Salvatore. They also had more daughters - Ann (Ninette), Lilyan (my mother), Madeleine, Mary, Rose, and Yolanda. I can't tell if they are related to the two names you posted - I don't know much about the family history as they were very tight-lipped when I was younger (I am now 55). My grandfather Vito was a herbalist doctor and made a very decent living. He died in 1939 so I never met him. Orsola la Dolce, my grandmother, lived well into her 90's dying in 1967 or '68. I knew her as well as you can when you don't speak Italian and she refused to learn English. There were 9 children in all. Al have passed away - Joseph being the last to die in 2003. Sal was a Monsignor and wrote a book on the ecumenical council called "While the Winds Blew". He was also a columnist for the Philadelphia Daily News and the editor of the Catholic Star Herald in Camden, NJ for many years.
My mother Lilyan married my father Mario Mussomeli in 1942 and had 6 children of which I am the 4th. My father was a retired Army officer serving in both WW II and Korea. He retired after 30 years as a Lt. Col. He later taught High School in Camden, NJ. I have two brother's - Vito (the eldest) is a lawyer in Winchester, VA and Joseph (two years youngers than me) has had a long and successful career in the state department. He is presently the American Ambassador to Cambodia residing in Pnom Penh. My three sisters all married and were homemakers - MaryAnne, Ursula (named after my grandmother), and Susan (the youngest). They live in New Mexico, Phoenix, and San Diego respectively. I live in PA. We are also closely related to the Campanella family that spawned Joseph and Frank - two fairly well-known actors. I met them once at my grandparents (father's side) renewment of marriage vows. I was just a kid at the time. The Mussomeli's were also related to the Campanella's so my parents were like 4th or 5th cousins somewhere way back when. My grandmother also had a brother named Jasper who came to this country. He was tall and distinguished and always happy and hearty. I wish I could help you more in you search but with all the Adamo's deceased from that part of the family I don't have any original resources to share with you but both my Adamo uncles were priests as I said before and left no heirs and very little information. I, also, am looking for my ancestral beginnings. I believe the Adamo's came from Cimmina and/or Palermo. I know my grandmother came from Palermo. My father's family came from Cimmina and I believe the Campanella's did also. That's all I can tell you in so short a space and time. Good Luck with the rest of your search.