I have been doing quite a bit of work on the descendants of Claude-Salois de St. Paul who came to New France with the Carrignana Regiment in 166something. I have found that one branch of his descendats became Salois-dit Caya or -Caille. So be sure to search under both names. Also, Salois was tortured into several forms, such as Salouer, Saulis, and others. If you look under Salois in www.family search.com, you will find a bunch of Salois-dit-Cayas.