author
Known as a collective rather than a single writer, this railroad-era association produced practical manuals and proceedings aimed at improving locomotive engine service. Its work captures the hands-on training culture of early American railroading.
Traveling Engineers' Association appears in library and bookseller records as a corporate or group author connected with railroad instruction and professional proceedings, rather than as an individual person. The association is best known for works such as The Traveling Engineers' Association to Improve the Locomotive Engine Service of American Railroads, a practical guide built around examination questions and answers for firemen seeking promotion and for new railroad employees.
The surviving records suggest a strongly instructional purpose: helping readers master locomotive operation, maintenance, and the technical knowledge expected in railroad service. That makes the association's books useful today not just as manuals, but also as snapshots of how skills were taught in the steam-rail era.
Because the credited author is an organization, not a single identifiable person, a conventional personal biography and portrait are not available from the sources I could confirm.