Willis also described Bishop as "better worth looking at than most celebrities...With more of the physiognomy of a Spaniard, with masses of black hair, curling slightly and gracefully, and his long mustache, giving quite an appearance. He is of middle size, but built for an athlete. With broad chest and shoulders, narrow hips and legs slightly bowed. Mammoth Cave is a wonder in which draws good society and Stephen shows that he is used to it." Bishop led tours through Mammoth that included such well-known 19th century figures as opera-singer Jenny Lind, essayist Ralph Waldo Emerson, Yale professor Benjamin Silliman Jr., and the violin virtuoso Ole Bull.
