Augusta Kaiser (16 January 1895 – 27 September 1932) was a modern German sculptor and ceramic artist who called herself Gust Kaiser from 1922 on. She is also known as Gustl Kaiser in connection to her ceramics work for the Kieler Kunst-Keramik pottery works.
Mathilde de Morny (26 May 1863 – 29 June 1944) was a French aristocrat and artist. Morny was also known by the nickname "Missy" or by the artistic pseudonym "Yssim" (an anagram of Missy), or as "Max", "Uncle Max" (French: Oncle Max), or "Monsieur le Marquis". Active as a sculptor and painter, Morny studied under Comte Saint-Cène and the sculptor Édouard-Gustave-Louis Millet de Marcilly.