This database of names is extracted by Lea Haber Gedalia from the book Mutual Responsibility in the Italian Ghetto 1516-1789
by Bracha (Ardos) Rivlin, Jerusalem Magnes Publishing, 1990. For each name the town is indicated, the page in the book where the name is found, and when available the profession.
In Venice, each kahal had its own organization. The Sephardic kahal was called Ponantini.The other two were Levantini and Eshkinazi.
For additional details please refer to Rivlin's's book.