Stephenson also designed the Rialto Theater in Beeville, now used for special occasion, not the running of films, which is located close to the Joe Barnhart Library. He helped construct the death mask of U.S. President William McKinley, who was assassinated in Buffalo in 1901. Stephenson also designed the courthouse in McMullen County, Texas and many other buildings, grand homes, schools, churches, and commercial buildings in and around Beeville.