Cowpox children. In 1796, British medical practitioner Edward Jenner tested the theory that cowpox could protect someone from being infected by smallpox. Although cowpox originates on the udder of cows, Jenner took his sample from a milkmaid, Sarah Nelmes. Jenner extracted the pus of one of the lesions formed by cowpox on Nelmes to another individual who never had smallpox, James Phipps. He eventually developed a scab and fever that was manageable. Approximately six weeks later, Jenner then introduced an active sample of the smallpox virus into Phipps to test the theory. After being observed for an extended amount of time,
Caitlyn Jenner restrict the legal definition of a person's gender to that assigned at birth. Prior to her public gender transition, Jenner had been married three times, first to Chrystie Scott ( Crownover) from 1972 to 1981. They have two children, son Burton "Burt" Jenner and daughter Cassandra "Casey" Marino ( Jenner). Jenner and Scott's divorce was finalized the first week of January 1981. On January 5, 1981, Jenner married actress Linda Thompson in Hawaii. They have two sons together, Brandon Jenner and Sam Brody Jenner (known as Brody). By February 1986, Jenner and Thompson had separated and subsequently divorced. Their sons