The de Grummond Children's Literature Collection is part of the McCain Library and Archives on the Hattiesburg campus of The University of Southern Mississippi.

In 1996, after Margret's death, it was revealed in her will that the entire literary estate of the Reys was to be donated to the de Grummond Children's Literature Collection at The University of Southern Mississippi.

[1] It includes artwork, dummies, manuscripts, typescripts and proofs for 37 books written or illustrated by Keats; personal, professional and fan correspondence; photographs and childhood memorabilia.

[1] The McCain building is home to the world's largest collection of Curious George writings and artifacts.

[2] A copy of this drawing can be viewed in the Curious George section of Barnes and Noble in the Thad Cochran Center.