Letter from Matthias Williamson to Charles Pettit. Elizabethtown - Asking for an inquiry into an affair of one Captain Riley, of the Twelfth Pennsylvania Regiment, who impressed a horse belonging to a Mr. Salter and never returned it.; American Philosophical Society
Letter from Matthias Williamson to Nathanael Greene. Elizabethtown - Introducing Mr. Aaron Woodruff, who has been an express-rider at the above post for three months, and if possible, desires his pay. If he is not paid, would like to know the amount of his wages and how the post is to be supplied with riders.; American Philosophical Society
