Among the correspondents in this folder are: Norman E. Hinkel (concerning a photograph of Sousa's band and another letter referring to the death of Frank Simon and information about King), Don Leach, Eleanor Saunders (concerning Louise Horne the Lady Cornetist that Bridges was researching. She also mentions other female brass players that he might want to include in any revision/update of the book.), Lynn L. Sams (concerning his review of Pioneers in Brass in the American Bandmasters Association Newsletter and the death of Frank Simon), Allan Britton (concerning an offer by Bridges to sell 120 of his early recording to the University of Michigan School of Music and a counter-proposal to buy copies of the recording made by Bridges), Rose F. Burke (2 letters), Arthur W. Lehman, Paul E. Bierley, Ward Hodge, Albert R. Gish (2 letters concerning Thomas H. King), Mrs. Charles (Grace May) Randall (2 letters concerning her husband "Charlie"), and Clifford P. Barnes (several letters in this folder concerning several people whom Bridges was researching for his revised edition including Tom King and Ole May).