I know this is a long time coming... I just happened to come across your query while doing a search on my Great Grandfathers photography studio. He is Frank Welch, of Welch Studio in Pontiac, Michigan. I spoke with my mother, and sadly, there are no remaining negatives from his studio. My grandfather, Carroll Welch, took over the business, and he passed away in 1972. I'm sorry that I was of no help really. However, if you are interested in seeing any photographs of the photographer, I can help with that.