Calculations and Estimates: Ordway, South Wing, undated

Calculations and estimates: Per centrum of Cost of Contingent Services in North Wing, February 2, 1881

Calculations and estimates: Position & Course, undated

Calculations and Estimates: Quantities and Values of Bodwell Co. Granite and Cutting in West and Centre Wings, January 18, 1884

Calculations and Estimates: Quantities and Values of Granite Stock and Cutting in North Wing, undated

Calculations and Estimates: S. [Samuel] F. Phillips to Alex. Ramsey, December 19, 1879

Calculations and Estimates: South Wing, undated

Calculations and estimates: Stock & Cutting in S W & N Building, undated

Calculations and Estimates: Stone Cutting [Memorandum], undated

Calculations and estimates: Stone papers, 1882

Calculations and Estimates: Thomas Lincoln Casey to Robert T. Lincoln, April, 7, 1883

Calculations and estimates: West Wing, undated

Calculations and estimates: When we took charge March 3, 1877, undated

Calculations and estimates: When we took charge of Building March 3, 1877…, undated

Calculations and Estimates: [Envelope], undated

Calculations and estimates: [Memorandum] concerning fire places Navy Building, undated

Calculations and estimates: [Memorandum] Cost of Plastering 3d Coat North, undated

Calculations and estimates: [Memorandum] Estimate for Water Main, undated

Calculations and estimates: [Memorandum] Estimate of Cost of heating apparatus Navy Building, undated

Calculations and estimates: [Memorandum] Estimate of Cost of Stones Stairs of War Building, undated

Calculations and estimates: [Memorandum] of Parties to furnish bricks, undated

Calculations [of water levels and amounts at Great Falls (GF) and Distributing Reservoir (DR)?], undated

Calculations, etc, of Prices of Stonecutting, 1877

Calhoun Latham to Thomas Lincoln Casey, December 27, 1888

Camelia C. J. Dyer to Thomas Lincoln Casey, January 15, 1884

Capt. Charles Carr to Thomas Lincoln Casey, January 24, 1891

Capt. Crowninshield to Thomas Lincoln Casey, August 6, 1885

Thomas Turtle to Thomas Lincoln Casey, July 21, 1890

Thomas Turtle to Thomas Lincoln Casey, May 2, 1888

Thomas Turtle to Thomas Lincoln Casey, October 4, 1888

Thomas Turtle to Thomas Lincoln Casey, October 5, 1888

Thomas W. Ferry to Thomas Lincoln Casey, undated [1877]

Thomas W. Seymour to Thomas Lincoln Casey, undated [1885]

Thomas Ward, Special Orders 194, August 22, 1889 (1)

Thomas Ward, Special Orders 194, August 22, 1889 (2)

Thornton Jenkins Hains to Redfield Proctor, Secretary of War, October 8, 1891, copy

Thorton A. Washington to Thomas Lincoln Casey, December 12, 1890

Thurston B. Barber to Thomas Lincoln Casey, November 20, 1887

Tillson's Bid/Papers connected with letter of July 27, 1883

To the Board of Consulting Engineers from Thomas Lincoln Casey, etc., January 17, 1896

Tornado District Map, undated

Townsend to Thomas Lincoln Casey, June 2, 1890

Treasury Department to Thomas Lincoln Casey, August 30, 1888

Treasury Department to Thomas Lincoln Casey, September 4, 1888

Treasury Department, Light-House Board to Thomas Lincoln Casey, December 1, 1891

Treasury Department, Office of Iight-House Board to Thomas Lincoln Casey, April 7, 1891

Treasury Department, Office of Light-House Board to Thomas Lincoln Casey, January 28, 1891

Treasury Department, Office of Light-House Board to Thomas Lincoln Casey, May 20, 1891

Treasury Department, Office of Secretary, undated [April 1891]

Treasury Department, Office of the Light-House Board to Thomas Lincoln Casey, August 18, 1890