Not much has been found on Robert Mullins to date.
To muddle things a bit, the item below from the Victoria Advocate, 11 Mar 1899 shows a Robert Mullins selling his photography business in Victoria, TX, to Mr. Rodman. (Note: The printing is obscured a bit. Perhaps the name on this one is Robert Mailins.)
The small town of Victoria, TX, is NOT close to the towns of Marlin and Kosse, TX where JOHN Mullins was working.
No research on Kosse of Texas at this time.
Not the one you were looking for? Here's the photographer's INDEX by name. Listed here are all the Cabinet Card photographers of the 19th century found in LOST GALLERY. This is a work in progress. For a look at the original postings go to LOST GALLERY.
Some examples on this page have been enhanced or restored for clarity and presentation here.
This page is free for educational and research purposes only but, as always, if the original owner of any of these examples objects to the use on this page, just let me know and they will be immediately removed.