After a brief illness , Sprague Smith died on December 28 , 1950 .
Isabelle established the Hilda Sprague - Smith Fund for the purchase of books about history at the Bryn Mawr College Library in her memory .
After a brief illness , Isabelle   died on December 28 , 1950 .
Isabelle established the Hilda Sprague - Smith Fund for the purchase of books about history at the Bryn Mawr College Library in her memory .