Colum, P., & MacDonagh, T. (1907). Letter from Padraic Colum to Thomas MacDonagh thanking Thomas for the title he provided Padraic for his book 'Wild Earth' and reassures Thomas that his play 'When the Dawn is Come' will be staged at the Abbey Theatre or The Theatre of Ireland but also advises he adopt W.B. Yeats' suggestions.

Colum, Padraic, and Thomas MacDonagh. Letter from Padraic Colum to Thomas MacDonagh Thanking Thomas for the Title He Provided Padraic for His Book 'Wild Earth' and Reassures Thomas That His Play 'When the Dawn Is Come' Will Be Staged at the Abbey Theatre or The Theatre of Ireland but Also Advises He Adopt W.B. Yeats' Suggestions. 1907.