Series consists of Stoddard's personal and business correspondence. Much of the material is letters of appreciation, thanks, or congratulations. Also present in this series is Stoddard's correspondence with the Ford Foundation about the use of money from the Foundation's Fund for the Advancement of Education and with the American Book Company about the publication of the English textbooks he authored.

Series contains the texts of speeches given by Stoddard over the course of his career. Included in each file is a table listing when and where that speech was given. An index to the speeches is available on-site.