This collection contains Judge Tate’s genealogy research, including correspondence, family files, articles, research material, census, work files, original documents, microfilms, microfiche, and other miscellaneous items. The correspondence arranged in alphabetical order reflects his attempts to gather information on the early settlers of Southwest Louisiana. The family files, also arranged in alphabetical order, contain various documents, correspondence, articles, publications, notes, and newspaper clippings regarding the different families named on each file. The published articles and work files contain articles that Judge Tate researched and wrote himself, though it is unclear if all were published.

The general research material files contain clippings, articles, correspondence, notes, copies of documents and records, and maps. The census files contain mostly information on the Spanish enumerations, with many of the files labeled with individuals' names. These files refer to the census but contain information on the labeled individual. The miscellaneous family work files contain notes, correspondence, and copies of records that refer to the name on the files.

Mrs. Albert Tate, Jr. donated the collection.