"Notebook No. 1": Mathematical notes on ring theory, and correspondence on same with Neal H. McCoy, Smith College. Manuscript and typescript notes, sheets 1:1 through 1:181, with some sections titled as follows: "Division rings and subdirect sums" [1:49]; "Annihilators in polynomial rings" [1:136]; "Prime ideals in non-associative rings" [1:149]

Notebook No. 2": Mathematical notes on ring theory. Manuscript and type script, sheets 2:1 through 2:105, with some sections titled as follows: "The Jacobson radical" [2:2]; "The Jacobson radical interms of modules" [2:10]; "The decomposition theorem in terms of modules" [2:14]; "On properties of regular rings" [2:25]; "Identities in alternative rings" [2:26]; "Row finite matrices

Miscellaneous mathematical notes on ring theory. Manuscript mathematical notations, with one section titled: "Subdirect sums of rings."

Miscellaneous mathematical notes: Manuscript mathematical notes, with two sections titled as follows: "Division rings and maximal ideals" "Modules and the Jacobson radical"

Miscellaneous mathematical notes: Manuscript mathematical notes on commutative rings.

Mathematical notes on "Some theorems on groups" [notation on original folder] Manuscript mathematical notes, one section titled "Regularity in an alternative naring."

Miscellaneous mathematical notes on real analysis and ring theory; manuscript mathematical notes.

Mathematical notes on "Schur's Lemma"; manuscript mathematical notes.

Miscellaneous mathematical notes on linear algebra, and, specifically, characteristic vectors [Original mailing envelope labeled "Math 33S-McCoy"]; manuscript mathematical notes, untitled, most undated.

Mathematical notes on limit theorems; Manuscript mathematical notes.

Miscellaneous mathematical notes; manuscript notes, undated, untitled.

Correspondence with Neal H. McCoy concerning mathematical proofs proposed by Bailey L. Brown.

Correspondence with Neal H. McCoy on ring theory.

Correspondence with Neal H. McCoy; proofs; typescript and notes for "Some theorems on groups with applications to ring theory." Manuscript and typescript materials relating to a proposed article for the Transactions of the American Mathematical Society.

Manuscript copy of "Radicals and subdirect sums." (Presented by Bailey L. Brown and Neal H. McCoy to the American Mathematical Society)

Reprint, Duke Mathematical Journal, vol. 13, no. 1. "Rings with unit element which contain a given ring", Bailey L. Brown and Neal H. McCoy.

Correspondence with Neal H. McCoy; notes, typescript for "A note on finite unions of ideals and sub-groups."

Mimeographed copy of "The real number system" [Possibly co-authored by Bailey Brown and Neal McCoy]

Correspondence with Oswald Veblen. Concerns the possibility of Bailey Brown submitting geometric formulas for publication.

Correspondence with Prof. S. Lefschetz [Princeton University]. Exchange of correspondence concerning the possible inclusion of theorems by Bailey L. Brown in the American Mathematical Monthly.

Correspondence with Marshall H. Stone () Concerning a lecture by Stone at Amherst College on "Mensuration and the theory of groups."

Correspondence with Prof. Nathan Jacobson [Yale University]; carbon typescript and revisions for "An extension of the Jacobson radical." (Presented by Bailey L. Brown to the American Mathematical Society).

Typescript, "On imbedding in product spaces." (Presented by Bailey L. Brown to the American Mathematical Society).

Mimeographed class materials, labeled "Mathematics 264, Summer 1953." "The Jacobson radical and related structure theory."

Mimeographed copy of "The theory of rings" by Irving Kaplansky.