General Correspondence
Scope and Content Note: This consists of her personal and professional correspondence, exclusive of the purely research correspondence of the Society, described below, and small groups of letters that have been left with the special articles or groups of records to which they pertain. The general correspondence is arranged alphabetically by name of correspondent.

A-Bq

Br-D

E-H

I-Le

Li-N

O-Sca

Scb-Z

Autobiographical and genealogical notes and correspondence

Diaries, 1911-1939, 1941
Physical Description: 30 vols. 

Record of speeches, 1913-1942
Physical Description: On 3 x 5 cards 

Record of Research, 1921-1942
Physical Description: On 3 x 5 cards 

Notes on search for manuscripts in other institutions

Notes on Draper Series, arranged alphabetically

Notes on Wisconsin Historical Society Collections, arranged alphabetically

List of manuscript collections at the Wisconsin Historical Society, 1921

“American Colonial Charter” Manuscript and notes

French Regime, Typewritten copy, correspondence, and notes

British Regime

Manuscript and correspondence

Typed copy

Mississippi Valley Historical Association, correspondence and committee reports

“Wisconsin,” Unpublished manuscript copies 1 & 2, and correspondence regarding proposed publication

Highway Markers and Landmarks

Dictionary of American Biography, Dictionary of American History, and Atlas of American History: Sketches, notes, and correspondence

American Historical Association: correspondence and committee reports

Articles, addresses, radio talks, records of interviews, pageants

Subject File
Scope and Content Note: These are miscellaneous notes made by Miss Kellogg on many subjects, some on 3 x 5 cards: some on small sheets; and a few in the form of written sketches to which are appended her notes on which the sketches are based. They are all filed alphabetically by subject, and are included in the index to the Research Correspondence, in which they are designated as “Subject Files.” The correspondence is arranged alphabetically by name of the correspondents.

Research Correspondence
Scope and Content Note: This consists almost entirely of Miss Kellogg's replies in longhand to requests for information on historical subjects, addressed to her or to the Society. Typewritten duplicates of many of these are undoubtedly on file in the main office of the Society. The correspondence is arranged alphabetically.

Index
Scope and Content Note: Miss Kellogg kept a card index for nearly 30 years of the subjects of her research; from these cards a subject index to her research correspondence has seen prepared, as a finding aid to the use of these letters.

Notes and transcriptions of items in the Draper collection and in United States Indian Office files pertaining to Indian treaties, 1794-1836

Transcriptions and translations of items in the Grignon, Lawe and Porlier Papers, the Green Bay and Prairie du Chien Papers, the George Boyd Papers, and occasionally from the Draper collection, all pertaining to social and military Wisconsin, 1805-1848

Editorial comments and transcriptions of items in the Draper collection pertaining to the American Revolution