In Bogardus opened a photography studio at 363 Broadway. He opened a new studio at 1153 Broadway in 1869, maintaining the 363 Broadway address.
That same year he became an important witness at the trial of William Mumler, a famous spirit photographer who had been accused of fraud by, among others, P.T. Barnum. Barnum hired Bogardus to fabricate a photograph of him with the supposed "ghost" of Lincoln; this photograph was then tendered in evidence at Mumler's trial to demonstrate to the court how easy it was to conjure fake images of ghosts.
Research reveals that William Mumler (well know spirit photographer) also worked out of both Broadway, NY addresses.