I've been compiling a list of Kaiser-Frazer and Willys dealers covering 1945-1957. At present there are over 6,600 listings covering K-F, Willys, Kaiser-Willys, etc with "dual dealerships" (same place sold both K-F and Willys at the same time). The listing has already been incorporated into the next release of KFOCI HANDBOOK. The file is an Excel spreadsheet and is around 1.5MB in size.
J.S.W. Motor Sales was K-F in Utica from 1947-1949, with Pontero's Better Service taking over into 1951. J.S.W. also operated a store in Yorkville NY from 1947-1951. I have no listing for a dealer in Ogdensburg, but that is not to say that one did not exist; I used issues of DEALER NEWS publications, stamps on literature, what newspaper ads I could find, etc. Also, Johnson White Trucks in Utica sold Willys vehicles starting in 1956 and I assume it went past the 1957 model year cut off I have for listings.