Henry Andrews Cotton was an American psychiatrist and the medical director of the New Jersey State Hospital at Trenton, in Trenton, New Jersey. During his tenure from 1907 to 1930, Cotton and his staff employed experimental surgery and Bacteriology techniques on patients, which included the routine removal of some or all of patients' teeth as well as tonsils, spleens, colons, ovaries, and other organs. These pseudoscientific practices persisted even after statistical reviews disproved Cotton's claims of high cure rates and revealed high mortality rates as a result of these procedures.

Irving Fisher was an American economist, statistician, inventor, eugenicist and progressive social campaigner. He was one of the earliest American neoclassical economists, though his later work on debt deflation has been embraced by the post-Keynesian school. Joseph Schumpeter described him as "the greatest economist the United States has ever produced", an assessment later repeated by James Tobin and Milton Friedman.