The collection spans the years 1745-1790, 1958-1980. It is divided into two sections: files and microfilm reels. The files pertain primarily to his activities as a Clemson faculty member and administrator. Most of these files relate to committees Lambert served on during his career at Clemson. The microfilm reels include film from a number of manuscript collections and archives as well as some newspapers. Although from disparate sources and consisting of only pieces of collections, series, and publications, they are united by their subject matter: South Carolina supporters of the British.

Lambert's files include material on a number of committees on which he served. The Clemson Archives Committee has correspondence, ca 1970-1980, and material about Committee meetings as well as the evaluation and disposition of records at Clemson. The School of Arts and Sciences files have material about instruction, research and public service for a self-study 1959-1960 as well as proposed changes in scholastic regulations and recommendation of the Self-study Committee for the Major in Arts and Sciences. The faculty business includes material he collected about (ca.1956-1962) on Who's Who in America, the Senate Committee Appointed to Study The Tenure Policy Adopted by the Board of Trustees. There is the curriculum material includes (ca. 1958,1959) Minutes of the Research Faculty Council Report of the Committee on Education Curriculum. The Purpose Committee of Clemson University includes correspondence of self-study throughout the different colleges on campus in 1960.

There is also some correspondence with American Association of Universities, Styles and Format for Committee Report. There is a folder of miscellaneous newspaper clippings titled "Irritants" related to communism and to civil rights. Lambert also gathered reference material for public speaking on different topics including in this folder a copy of, "Case of Ten Parents against Board of Education, Union Free School District No.9, Hyde Park, N.Y., June 26,1962.''

Lambert's collection of microfilm includes material from archives and manuscript repositories related to Loyalist in South Carolina. The Charles Marquis of Cornwallis Papers 1761-1781 are primarily correspondence. There are portions of the official records from the following commissions and legislative bodies. Commission of Enquiry 1783-1790, British Public Record Office, Sainsbury Transcripts 1745-1755, Public Record Office 457, C.0.5,512-526 of Police, Records of the States of the United States 1751-1784.

The following newspapers are included for select years: Bahama Gazette 1784-1792; Rivington's Gazeteer 1773-1783, Royal American Gazette 1781-1783; and The Western Sun 1815-1816.