Series contains the diaries kept by Antonio and Evelyn Heras while they lived in Spain during the 1932-1933 school year. Series also contains typescripts of the diaries as they were prepared for publication. Antonio's diary is in Spanish; Evelyn's is in English.

Series contains miscellaneous unidentified typescripts and mansucripts.

Series contains publications and newspaper clippings in which Heras's articles, stories, reviews, or poetry appeared or in which Heras's works were reviewed. Series also contains a few works written by Heras's students.