“The Vocabulary of Colloquial Navajo, published in 1950 as a supplement to The Navajo Language, did include a wealth of sentence examples for each verb entry, and it was the intention of the authors that the two lexical works might sometime be combined and expanded—an intention that did not become possible until 1974 [at UNM,] when a supporting grant was made for this purpose by the National Endowment for the Humanities.” (Young and Morgan, 1987)

During this time, Young and Morgan also wrote and published Navajo Historical Selections (1954).