camp mother

noun2

1. •
   A woman in charge of housekeeping tasks in a camp.

   • The camp mother managed to keep the stomachs full and the beds in tip-top shape. — 1994
2. •
   (historical) A woman who took on the role of adoptive mother to a motherless girl in a concentration camp.

   • She became known as the little girl who sat on the steps of the TB Block, darting inside whenever she saw authorities, then going back to await the return of her camp mother. — 2000