Esther Applin

Esther Applin was an American geologist and paleontologist. She completed her undergraduate degree in 1919 from the University of California, Berkeley. Later, she completed a master's degree which was focused on microfossils. She was a leading figure in the use of microfossils to determine the age of rock formation for use in oil exploration in the Gulf of Mexico region. Her job was to examine microfossils collected in drill holes to determine the age of the rock into which the company was drilling. Applin's discoveries were crucial to successful drilling operations across the entire oil industry. Additionally, her contribution to geology and the study of micropaleontology, put women geologists on the map, and was pivotal in earning them respect in the field.

24 November 1895

Born on the same birth day (24 November): Alfredo Kraus • Bülent Korkmaz • Eileen Barton • Henrik Brockmann • Horacio Ramírez • Jimmy Graham • Julius Martov • Marshall Berman • Shane Bourne • Theodor Altermann • Wayne Jackson (musician) • William Webb Ellis

Born in the same month (November 1895): Bill W. • Charles MacArthur • Evert van Linge • Gregorio López (writer) • José Iturbi • Manuel Alonso Areizaga • Nima Yooshij • Paul Hindemith • Pierre Cot • Walter Jackson Freeman II • Wealthy Babcock • Wilhelm Kempff • William Tubman