Sadler was born on 7 July 1869 in
Toul. She trained at the
Julian Academy and studied with
Marcel Baschet and
Henri Lucien Doucet. She exhibited at the Nancy and Paris Salons. She began at the Paris Salon in 1894 and exhibited miniature paintings at the Nancy Salon. In 1910 she began to collect paintings for the town, prompted by a suggestion and donations by . The local museum now houses the collection which still receives donations by visiting artists. She had shown an interest in art documenting the role of local and visiting artists. Sadler became Grez-sur-Loing's mayor in 1945. The town has her self portrait in their collection. Sadler died in 1949 in
Nemours. ==References==