J. D. Grimes

From Kook Science

J. D. Grimes
Born 1 December 1863(1863-12-01)
Waltreak, Yell Co., Arkansas
Died 14 June 1933 (69)[1]
Sallisaw, Sequoyah Co., Oklahoma
Spouse(s) Alice Marshall (m. 1892; dv. 1902)

Jefferson Davis Grimes[i] (December 1, 1863 - June 14, 1933) was an American blacksmith and barber who, while resident at East St. Louis, Illinois, was reported in 1902 to have invented a perpetual motion "gravity motor."

Press Coverage


  1. Most newspapers that picked up the perpetual motion story wrongly called him J. S. Grimes.