Houghton created her drawings in a variety of methods, but always during a séance. She produced her first in 1861, years before more renowned abstract artists.
Leonora Piper was one of the most acclaimed mediums of her era. She made believers of famous thinkers, but her detractors were numerous — and adamant.
An eerie demonstration in 1848, conducted by Kate and Margaret Fox in a small New York farmhouse, is remembered as the first American séance.