Amongst his books are reference guides to the library's collections in the history of science.

After more than forty years of service at the Library of Congress he retired in June 2012.

Twenty-six years later shifted to work in the Library of Congress' manuscript division.

[2] As the manuscripts historian for science at the Library of Congress he was primarily responsible for the exhibition and acquisition of the papers of scientists.

You can help Wikipedia by expanding it.This article about a person involved with library and information science is a stub.