Walter My mother-in-law was named Raphaelina Infante. She died in 1990. She had a sister named Rosina. She recalled that as a child, she had a sister who probably died but was never sure about the circumstances. I think you have hit the bullseye. She never mentioned an older sibling, but the rest of your info fits. I truly thank you. Now, I need to find long-lost relatives in Italy!!!