MLA

Streeter, Thomas W. (Thomas Winthrop), 1883-1965. Translation of proclamation to Texans, Matamoras. Box 2, folder 92. 1835 Jul 12. https://collections.library.yale.edu/catalog/17438000.

APA, 6th edition

Streeter, Thomas W. (Thomas Winthrop), 1883-1965. (["Box 2, folder 92"])(1835 Jul 12)[Translation of proclamation to Texans, Matamoras]. https://collections.library.yale.edu/catalog/17438000.