Huff, Clifton Blair2018-05-042018-05-041942https://hdl.handle.net/1808/26418Dissertation (Ed.D.)--University of Kansas, Education, 1942.This work is in the public domain and is available for users to copy, use, and redistribute in part or in whole. No known restrictions apply to the work.The age-grade status of 46,409 elementary school pupils in the state of KansasDissertationopenAccess