p. 28 Letter dated May 7, 1912 to H. S. Wilgus from J.A.B. indicates no use in Shops for boiler tubes, dated May 7, 1912

p. 28 Letter dated May 7, 1912 to H. S. Wilgus from J.A.B. indicates no use in Shops for boiler tubes, dated May 7, 1912, Box: 1, Volume: 3. Pittsburg, Shawmut & Northern Railroad Company papers, 2161. Division of Rare and Manuscript Collections. https://archives.library.cornell.edu/repositories/2/archival_objects/357862 Accessed January 13, 2026.