The Edward T. LeBlanc Memorial Dime Novel Bibliography

Edition - The Bradys' Wall Street Trail; or, The Matter of X-Y-Z - Secret Service edition, first appearance

(source: Stanford Libraries)
Online Full Text: Stanford Digital Repository
Series: Secret Service: Old and Young King Brady, Detectives no. 288
Item: The Bradys' Wall Street Trail; or, The Matter of X-Y-Z
Author: New York Detective (pseudonym used by multiple people)
Date: July 29, 1904
Publisher: Frank Tousey (New York (N.Y.): 24 Union Square) -- United States