- US US-IaGG MS/MS 01.55-1
- Unidad documental compuesta
- 1904-1919
Parte deLouis Hartson Memoirs 1904-1919
2 typescripts, four letters from G. Stanley Hall, Clark University, to Hartson, Xerox copies (original letters returned to Hartson to be forwarded to Clark University). April 28, 1910, May 4, 1910, Jan. 1, 1912.