Photograph: Urn, undated

Plan (Half), foundation level[?], with load-bearing capacity, undated

Plan and Sections of Proposed Fireproof Room and Ceiling for Winder's Building, undated

Plan, Blow off points at Massachusetts Avenue and New Jersey Avenue, undated

Plan, cyanotype: Horizon Section on line A-A August 23, 1882

Plan, foundation level[?], with load-bearing capacity, undated

Plan, Mains from [Distributing] Reservoir to 8th Street SE, undated

Plan, New Jersey Avenue Mains from B Street to L Street, undated

Plan, Pension Bureau lot with Water Table and Sewer Lines, undated

Plan, Potomac River near Great Falls, undated

Plan, Public Printing Office, undated

Plan, Sewer line from 4th Street to New Jersey Avenue & B Street, undated

Plan: Building for Library of Congress, undated

Plans, Washington Aqueduct Distributing Reservoir, Plate XIII, March 1871

Plants and Bulbs, December 1, 1877

Poem: The Round of the Waters

Poem: The Watchers

Poem: There's a step between the dear one gone

Points of Superiority of the North Wing over the South Wing of the Building for State, War, & Navy Dept., undated

Poland To Thomas Lincoln Casey, December 8, 1890

Postmaster to Thomas Lincoln Casey, July 30, 1887

Pratt to Thomas Lincoln Casey, February 11, 1885

Pratt to Thomas Lincoln Casey, Thomas Lincoln Casey to Pratt to Thomas Lincoln Casey, February 10, 1885

Printed material: State Dept Blg North Wing, undated

Professor Baird to Thomas Lincoln Casey, April 14, 1884

Professor J. B. Wheeler to Thomas Lincoln Casey, February 3, 1879

Professor S. Newcomb to Thomas Lincoln Casey, January 17, 1879

Professor S. Newcomb to Thomas Lincoln Casey, May 2, 1878

Professor S. Newcomb to Thomas Lincoln Casey, undated [May 1878]

Professor Spencer Baird to Thomas Lincoln Casey, June 14, 1883

Professor William H. Burr to Thomas Lincoln Casey, January 15, 1896

Professor William H. Burr to Thomas Lincoln Casey, March 15, 1896

Professor William H. Burr to Thomas Lincoln Casey, March 9, 1896

Project of Expenditure or $500,000 appropriation asked for year 1885-6, February 4, 1885

Projections of loss of head by street and various pipe sizes, undated

Proposals for Stone, Sand, Cement and Iron, May 19, 1887

Proposed Government Printing Office, August 11, 1894, copy

Provisional program recommended for the Centennial Commemoration of the first authorized settlement in the territory of the northwest, 1887

Quantities of Stone, S. Wing, July 21 - 77, No. 9, July 21, 1877

Quincy A. Gillmore to Hon. S. Y. Tupper, January 22, 1885, circular

Quinn to Thomas Lincoln Casey, August 8, 1889, telegram

R. B. Bowler to the Auditor for the State and other Departments, October 5, 1894, copy (1)

R. B. Bowler to the Auditor for the State and other Departments, October 5, 1894, copy (2)

R. B. Jones to Thomas Lincoln Casey, January 17, 1891

R. B. Thomas to Thomas Lincoln Casey, July 12, 1888

R. C. Drum to Thomas Lincoln Casey, December 28, 1885

R. C. Drum to Thomas Lincoln Casey, July 23, 1888

R. C. Drum to Thomas Lincoln Casey, March 13, 1885, circular

R. C. Drum to Thomas Lincoln Casey, March 5, 1887, telegram

R. C. Drum to Thomas Lincoln Casey, November 22, 1888