Agreements for iron, railroad ties, bridge building materials, masonry, fences, construction equipment and transportation of materials. Also includes a few estimates and propositions, a general list of contracts [n.d.]; list of contracts for grading, Dec. 25, 1852; and agreements to pay in bills of New England and New York banks or in money current in Ill., 1852; Inventory of teams and tools, Jan. 13, 1854; a few vouchers for grading and masonry, 1852-53. The 1851 document is not a contract but rather a letter to Robert Schuyler from Roswell B. Mason, regarding building at Cairo, Illinois. There are also 1855 contracts regarding the grading of bluffs in La Salle.

For more contracts, see also IC 2.32: Contracts, 1851-1882.