Markham (Venus)

Named after Beryl Markham - English aviator (1902-1986).

Beryl Markham adventurer, racehorse trainer and author. During the pioneer days of aviation, she became the first woman to fly solo across the Atlantic from east to west. She is now primarily remembered as the author of her memoir, West with the Night. (wikipedia entry)

A crater is a circular depression likely created by an impact event. On Venus they are named after deceased women who have made outstanding or fundamental contributions to their field (if over 20 km). If smaller common female first names are used.