The back of the photo appears to identify the fellow as "Charles S. Taylor" although I am open to any other suggestions for the middle initial.
Here is front and back. (Click on either photo for a larger image.)
Some clues worth noting:
- Location is Philadelphia, PA, specifically 1206 Chestnut Street.
- Photographers are "Broadbent and Phillips."
- "No. 39597" is barely readable at the bottom of the reverse. It may be an identification number, but one would need access to the photographer's files to know for sure.
1875 Philadelphia City Directory shows Broadbent & Phillips
Photographers, also Robert C. Broadbent at same address.
The next hurdle will be to determine who exactly this is. The name Charles Taylor is a fairly common one. And without certainty of the middle name or initial, I do not feel confident of an absolute identification. But here goes ...
Let us assume the photo was taken in 1878, which would be right in the middle point of the known years of the Broadbent and Phillips partnership. I think the man looks to be in his early 30s (although facial hair may be making him look a bit older.) But if that is a good guess, then his birth year would be between 1844 - 1847.
(Still researching this one.)