Allegheny Observatory.
Allegheny Observatory records, 1850-1967.
Correspondence and letterpress books of eight of the observatory directors: (Samuel P. Langley, Dir. 1867-1887; James Edward Keeler, Dir., 1891-1898; John Alfred Brashear, Dir., Pro-tem, 1898-1900; Frank Lawton Olicott Wadsworth, Dir., 1900-1905; Frank Schlesinger, Dir., 1905-1920; Heber Doust Curtis, Dir., 1920-1930; Frank Craig Jordan, Dir., 1930-1941; Nicholas Emory Wagman, Dir., 1941-1970); correspondence of astronomers affiliated with the Observatory (including Frank Bartko, Wallace Beardsley, Keivin Burns, and Zaccheus Daniel) and their miscellany, including notes and articles written by and about them, as well as miscellany from two other Observatory astronomers, J. H. Kiewiet de Jonge and Robert Kemper; directors' miscellany including notes and manuscripts, waste books, documents; notebooks and drawings of observations including Sunspot Drawings (1873-1882) and yearbooks of astronomical observations (1891-1898); photographs (exterior/interior views of the original and second observatory, equipment, Thaw telescope, other telescopes, observations, individuals, groups); records of the Astronomical Society of Pittsburgh; administrative records of the Allegheny Observatory.
Bartko, Frank.
Beardsley, Wallace.
Curtis, Heber Doust director, Allegheny Observatory.
Daniel, Zaccheus.
Jordan, Frank Craig, 1865-1941. director, Allegheny Observatory.
Kemper, Robert.
Kiewiet de Jonge, J. H.
Langley, S. P. (Samuel Pierpont), 1834-1906. director, Allegheny Observatory.
Schlesinger, Frank, 1871-1943. director, Allegheny Observatory.
Wadsworth, Frank Lawton Olicott director, Allegheny Observatory.
Wagman, Nicholas Emory, 1905-1980 director, Allegheny Observatory.
Allegheny Observatory.
Allegheny Observatory -- Buildings -- Photographs.
Allegheny Observatory -- Records and correspondence.
Astronomical Society of Pittsburgh -- Records and correspondence.
Astronomers -- Correspondence.
Astronomical instruments -- Photographs.
Astronomy -- Observations
Astronomy -- Observations -- Drawings.
Sunspots -- Observations -- Drawings.
Administrative records. aat
Articles. aat
Letterpress copybooks. aat
Notes. aat
Notebooks. aat
Yearbooks. aat
AIP-ICOS
University of Pittsburgh. University Archives. 7500 Thomas Boulevard, Pittsburgh, PA 15208, USA