Ira Erastus Davenport (September 17, 1839 – July 8, 1911) and William Henry Davenport (February 1, 1841 – July 1, 1877), known as the Davenport brothers, were American magicians in the late 19th century, sons of a Buffalo, New York policeman. The brothers presented illusions that they and others claimed to be supernatural.
The Davenports began in 1854, less than a decade after Spiritualism had taken off in America. After stories of the Fox sisters, the Davenports started reporting similar occurrences. Their father took up managing his sons and the group was joined by William Fay, a Buffalo resident with an interest in conjuring. Their shows were introduced by a former "Restoration Movement" minister, Dr. J. B. Ferguson, a follower of Spiritualism, who assured the audience that the brothers worked by spirit power rather than deceptive trickery. Ferguson was apparently sincere that the Davenports possessed spiritual powers.
The Davenports' most famous effect was the box illusion. The brothers were tied inside a box which contained musical instruments. Once the box was closed, the instruments would sound. Upon opening the box, the brothers were tied in the positions in which they had started the illusion. Those who witnessed the effect were made to believe supernatural forces had caused the trick to work.
The Davenports toured the United States for 10 years and then traveled to England where spiritualism was beginning to become popular. Their "spirit cabinet" was investigated by the Ghost Club, who were challenging their claim of being able to contact the dead. The result of the Ghost Club's investigation was never made public. In 1868 the team was joined by Harry Kellar. Kellar and Fay eventually would leave the group to pursue their own career as a magician team.