Ottaline Gambol

Ottaline Gambol was a British Minister for Magic who was presumably in office during the 19th century or 20th century. Fascinated with Muggle technology, she "daring[ly] and controversial[ly]" proposed the train as a solution to the age-old dilemma of how to transport hundreds of students to Hogwarts School of Witchcraft and Wizardry without attracting non-magic attention, leading to the creation of the Hogwarts Express. Where the locomotive was actually obtained from remains unknown, but there were classified files at the Ministry of Magic pertaining to a large-scale operation involving 167 Memory Charms, as well as the biggest Concealment Charm ever performed in Britain. The morning after this operation, the residents of Hogsmeade awoke to find a railway station that had not been there previously, and Muggle railway employees in Crewe had the feeling they had misplaced something, which stayed with the for the rest of the year.

Appearances

 * Pottermore