Hi Joanna, The Salvatore Tomasso that I have had two brothers Ernesto and Alfredo. He had one sister and I don't think she was a nun. His parents were Pietro Tomasso and Seraphina Arcari. They were italian and dutch mixed. I do know that Ernesto continued to live in Rotterdam and the parents died in Rotterdam, but I can't find anything on the sister Clara or Alfredo. The family originiated in Cardito Italy. but died in Duseldorf, Netherlands at least the father did. He died in 1908. Mother died in Vineland, N.J. in 1928.
I can tell you this much that the entire family inter married with their first cousins. Pietro Tomasso's parents were Nicolo Tomasso and Caterina Goia and she died in Cardito Italy in 1877 Nicolo was born in Cardito in the 1800's and died in Rotterdan, Neth in 1878. Hope this is helpful to you. Sondra Ricci