Who dated Martha Stettler?

Adelheid Fanny Martha Stettler (25 September 1870 – 16 December 1945) was a Swiss painter and engraver. She was one of the founders of the Académie de la Grande Chaumière, and was co-principal of the school from 1909 until 1945.

Alice Dannenberg, (4 April 1861 – 28 June 1948) was an early 20th century French painter of Russian origin who cofounded an art school in Paris, the Académie de la Grande Chaumière.