University of Chicago Library

Guide to the Andrew and Clark Sherwood Collection 1873-1882

© 2016 University of Chicago Library

Descriptive Summary


Sherwood, Andrew and Clark. Collection




0.25 linear feet (1 box)


Special Collections Research Center
University of Chicago Library
1100 East 57th Street
Chicago, Illinois 60637 U.S.A.


The Andrew and Clark Sherwood Collection contains letters, notes, and reports relating to the brothers’ study of geology in the northeastern United States in the late 19th century. The letters are addressed to James Hall, a then-prominent geologist and paleontologist. Much of the material in the collection concerns the geology of New York and Pennsylvania, in particular the stratigraphic columns found.

Information on Use


The collection is open for research.


When quoting material from this collection, the preferred citation is: Sherwood, Andrew and Clark. Collection, [Box #, Folder #], Special Collections Research Center, University of Chicago Library.

Historical Note

The field of geology in the 19th century experienced a rapid expansion as the technological advances offered by the mining industry and the industrial revolution offered new ways to access and interpret geological information, particularly stratigraphic columns – the sequence of rock formations that occur according to the order of their formation. The northeastern United States was a hotbed for such activity, and as a result, many geologists rose to prominence.

One such man was James Hall (1811-1898), a paleontologist and geologist who worked largely in New York. Hall worked with a number of surveyors and collectors in a number of geological fields. Most relevantly for this collection, Clark and Andrew Sherwood (1848 -) contributed extensively to the practical geology of New York and Pennsylvania. Unfortunately, little it known of the lives of the Sherwood brothers beyond the passing mention in various publications (such as the 1869 progress report for the geological survey of Ohio).

Scope Note

The Andrew and Clark Sherwood Collection contains letters, a report, a hand-drawn map and a chart of stratigraphic columns. All material relates to the geology of New York and Pennsylvania. The letters, dated in 1882, are addressed to James Hall, a contemporary geologist and paleontologist. The report, “Observations on the Geology of Southern New York and Northern Pennsylvania (1873),” contains the same chart of stratigraphic columns found later in the collection, suggesting the two were created in roughly the same time period.

The collection was previously part of the Miscellaneous Manuscripts Collection.

Related Resources

The following related resources are located in the Department of Special Collections:


Subject Headings


Box 1   Folder 1

“Observations on the Geology of Southern New York and Northern Pennsylvania” by Andrew and Clark Sherwood, 1873

Box 1   Folder 2

Map: Paleville Section, undated

Box 1   Folder 3

Chart of Stratigraphic Columns, undated

Box 1   Folder 4

Correspondence, Andrew Sherwood to James Hall, 1882

  • Letter, February 13, 1882
  • Letter, March 3, 1882