Interesting tip from Bill Andrews. He stopped by and asked what I knew about John Kent, and all I remembered was that he was a local photographer in 19th century, some of our carte de visite are by him. Apparently he was a much bigger deal than I'd realized, having a substantial photography career, and helping Eastman start Kodak!
Bill suggested I contact Eastman House, I did, and they replied that they do have maybe 200 hundred of his photos, including many Brockport people. Have made an appointment for in October to go see what they have. Need to assemble list of his photos I already have, bring camera etc.