Chart of unnumbered estimate of work done by John Williams. This is signed by Fred Holmes, Apr. 1857.

Chart of estimate #17 of work done by John Williams. This is signed by S.D. Woodruff, May 1857.

Chart of estimate #18 of work done by John Williams. This is signed by Fred Holmes, June 1857.

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

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

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

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

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

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