Ellis Island has record of Alfonso Borgognoni from Castel di Casio, Bologna, Italy who was visiting cousin Guisseppe Gentini in Ladd, IL in 1907. Vincenzo Borgognoni in Italy is listed under the Relative section. In 1920 Alfonso said he was visiting Censini Serafino.
The reason I believe this could be the father of Ettore Borgognoni is because Ettore lived in Ladd, IL in 1912 (where Alfonso visited in 1907) and in Mark, IL where Alfonso visited in 1920, 2 years after Frank Borgon (1917) was born. But Frank Borgon (1917) stated his father Ettore never mentioned a visit from his father, so unfortunately I cannot confirm a relationship to Alfonso. I am contacting the relatives in Italy for further information.
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