Biographical directory of the United States Congress, 1774-1989 : the Continental Congress, September 5, 1774, to October 21, 1788, and the Congress of the United States, from the First through the One Hundredth Congresses, March 4, 1789, to January 3, 1989, inclusive
"Compiled and edited under the direction of the Joint Committee on Printing, Congress of the United States ... Bruce A. Ragsdale, editor in chief ... Kathryn Allamong Jacob, editor in chief"--P. v.
Rev. ed. of: Biographical directory of the American Congress, 1774-1971.
In: Pennsylvania Magazine of History and Biography, v.103, 1979.
This record provides a link to this resuorce on the publisher's official online repository.
Summary
"On how Senator Simon Cameron and the Pennsylvania Railroad were able to dominate a legislature where turnover was high and most lawmakers were primarily concerned with passing laws to cater to local interests." [from ExploreHistory.com]