Voucher from the Engineer Department of Port Dalhousie and Thorold Railway Extension to John Gilleland for supplies. This is accompanied by a note about pine lumber and fencing, Apr. and May, 1857

Voucher from the Engineer Department of Port Dalhousie and Thorold Railway Extension to John Gilleland for supplies. This is accompanied by a note about pine lumber and fencing, Apr. and May, 1857.

Voucher from the Engineer Department of Port Dalhousie and Thorold Railway Extension for W.G. Thompson for the Northern Division. There are attached notes from the Welland Railway Company to John Mitchell for putting up shelves; to William Waud, staff; and to William Martin to repair the office (copy), June 10, 1857

Voucher from the Engineer Department of Port Dalhousie and Thorold Railway Extension for W.G. Thompson for the Northern Division. There are attached notes from the Welland Railway Company to John Mitchell for putting up shelves; to William Waud, staff; and to William Martin to repair the office (copy), June 10, 1857.

Unsigned letter to John Williams stating that before the return of the final estimate, the arch of the bridge must be completed

Unsigned letter to John Williams stating that before the return of the final estimate, the arch of the bridge must be completed, Sept. 19, 1857

Chart of estimate #7 of work done by John Williams during the month of May. This is signed by Fred Holmes, May 29, 1856

Chart of estimate #7 of work done by John Williams during the month of May. This is signed by Fred Holmes, May 29, 1856.

Chart of estimate #8 of work done by John Williams during the month of June

Chart of estimate #8 of work done by John Williams during the month of June. This is signed by Fred Holmes, June 1856

Chart of estimate #9 of work done by John Williams for the month of July

Chart of estimate #9 of work done by John Williams for the month of July. This is signed by Fred Holmes, July 30, 1856.

Chart of estimate #10 of work done by John Williams

Chart of estimate #10 of work done by John Williams. Aug. 1856.

Chart of estimate #11 of work done by John Williams

Chart of estimate #11 of work done by John Williams. This is signed by Fred Holmes, Sept. 1856.

Chart of estimate #12 of work done by John Williams

Chart of estimate #12 of work done by John Williams. This is signed by Fred Holmes, Oct. 1856.

Chart of estimate #13 of work done by John Williams

Chart of estimate #13 of work done by John Williams, Nov. 1856.

Chart of estimate #13 of work done by John Williams

Chart of estimate #13 of work done by John Williams. This is signed by Fred Holmes, Nov. 1856.

Chart of estimate #14 of work done by John Williams

Chart of estimate #14 of work done by John Williams, Dec. 1856.

Chart of estimate #14 of work done by John Williams

Chart of estimate #14 of work done by John Williams. This is signed by Fred Holmes, Dec. 1856.

Chart of estimate #15 of work done by John Williams

Chart of estimate #15 of work done by John Williams, Mar. 1857.

Chart of estimate #16 of work done by John Williams

Chart of estimate #16 of work done by John Williams, April 1857.