John L. Ridgway

Ridgway collaborated with his brother on ornithological illustration and published his own works.

Robert Ridgway brought him to work as a copyist and draftsman for the United States National Museum in the 1880s.

Ridgway was a draftsman for the United States Geological Survey (USGS) from 1884 to 1918, and its chief illustrator from 1918 to 1920.

John Ridgway illustrated several works in the fields of ornithology and paleontology.

Notable among these were: Ridgway authored Scientific Illustration (Stanford University Press, circa 1938) and The preparation of illustrations for reports of the United States Geological survey (USGS, 1920).