The Koons family were prominent figures in 19th-century Spiritualism, known for their physical mediumship and widely publicized séances. Led by Jonathan Koons in rural Ohio during the 1850s, the family claimed to produce spirit communications through raps, moving objects, musical sounds, and materialized hands during séances held in their home.

The Koons séances attracted visitors from across the country, including prominent Spiritualists, skeptics, and investigators. While supporters viewed their phenomena as compelling evidence of spirit interaction, critics raised questions about deception and environmental manipulation. Regardless of interpretation, the Koons family played a significant role in shaping early Spiritualist practice and debate, highlighting the movement’s blend of belief, performance, and controversy.