Maria Sibylla Merian
Maria Sibylla Merian (2 April 164713 January 1717) was a German-born naturalist and scientific illustrator, a descendant of the Frankfurt branch of the Swiss Merian family. Merian was one of the first naturalists to observe insects directly.
Maria Czaplicka
Maria Antonina Czaplicka (25 October 1884 – 27 May 1921), also referred to as Marya Antonina Czaplicka and Marie Antoinette Czaplicka, was a Polish cultural anthropologist who is best known for her ethnography of Siberian shamanism. Czaplicka's research survives in three major works: her studies in "Aboriginal Siberia" (1914); a travelogue published as "My Siberian Year" (1916); and a set of lectures published as "The Turks of Central Asia" (1919). Curzon Press republished all three volumes, plus a fourth volume of articles and letters, in 1999.