The L. T. Barret Collection compliments the more extensive Lyne Taliaferro Barret Papers (A-5) by adding new documentation of L. T. Barret’s mercantile and farming pursuits, military service, masonry, and community service. While the collection consists primarily of bills, receipts and promissory notes issued and received by L. T. Barret and Thomas Jefferson Johnson, there is also business, family, military, and personal correspondence, advertising, slave contracts and legal documents.

The items in this collection relate to William Roark's work as a surveyor and in other official positions, to the buying and selling of slaves, and to other aspects of his life. All of the items in the collection are photocopies plus one typescript of one of the documents.