All I have is really more guesswork. On stereoworld.org I found for photographers: J. Aylesworth (sometimes spelled Alesworth) of Apponaug & Warwick. J.H. Aylesworth of Rocky Point & Apponaug (appears to be 1875-1877) who had a traveling photo gallery in the 1860s. Aylesworth & Loomis of Rocky Point (probably G. T Loomis). And, finally, Aylesworth & Butman of New Berlin, NY. It is not known if this is the same Aylesworth. Aylesworth's first name may be John. That he had a traveling photo gallery could expand the area that Charles Briggs might be located. My guess was that the photo is from this time period based on similar photos I've seen from that time period (as I am definitely not an expert in this area). He also appears to me to be about 12 years of age, give or take a couple of years. BUT, that's all just guesswork. There were a number of people, it appears, of the name Charles Briggs in Rhode Island at the time. Again, nothing more than a guess but I would think this Charles was possibly born in the late 1850s. CDVs were apparently very popular in the 1860s.