Abstract
Robert Allen Bamford Jr., also known as Alan L. Hart (1890-1962), was an American physician, radiologist, researcher, and novelist who developed and implemented the gold standard for tuberculosis (TB) screening using chest radiography, two decades before epidemiological tools became widespread. His groundbreaking medical contributions were made despite facing systemic discrimination as one of the first transgender men in the United States to undergo gender-affirming surgery. This article explores Dr. Hart's achievements in medicine and public health, his gender transition, and his lasting impact on both healthcare and lesbian, gay, bisexual, transgender, queer, intersex, asexual, and other non-binary or non-heterosexual identities (LGBTQIA)+ history.