David Wilson Henderson (February 23, 1939 – December 20, 2018) was a Professor Emeritus of Mathematics in the Department of Mathematics at Cornell University.

[1][2] His practical geometry, which he put to work and discovered in his carpentry work, gives a perspective of geometry as the understanding of the infinite spaces through local properties.

[3] Euclidean geometry is seen in his work as extendable to the spherical and hyperbolic spaces starting with the study and reformulation of the 5th postulate.

[3][4] He was struck by an automobile in a pedestrian crosswalk on December 19, 2018, and died the next day from his injuries.

[5] This article about an American mathematician is a stub.