Subject is exactly New York Tribune
"American Civilization Illustrated" - Mortimer Thomson, (Q.K. Philander Doesticks, P.B.) - New York Tribune
The popular humorist often used the undercover ruse in his work for The New York Tribune. In this instance, he posed as a client to visit a number of New York's purveyors of the "black arts" to expose their scams. The series preceded his pose as a slave buyer to cover the Butler auction in Savannah.
Olcott volunteered to cover the hanging of John Brown for the New York Tribune when the newspaper's regular correspondent had to flee under threat of Southern ire at his dispatches. He posed as a member of the Petersburg Grays, one of the regiments sent to Charles Town to guard Brown's body.
Redpath inaugurated a "Facts of Slavery" column for the New York Tribune, curating slave sale information from the Southern press, and later went South to interview slaves so they could have a forum for relating their experiences in their own words. He later took jobs at Southern newspapers and surreptitiously sent reports back north in the guise of letters to relatives in Minnesota. They, in turn, under prior arrangement, forwarded the reports to editors.
The popular humorist and New York Tribune columnist used the undercover ruse often in his newspaper work. In this instance, he visited a number of New York purveyors of "the black arts" and exposed their cons.
As a reporter for the New York Tribune, Julius Chambers went undercover as a patient to investigate conditions at the Bloomingdale Asylum following reports of abuse at the institution.
Richardson went south for the Tribune in the last days before the Civil War and reported from Louisiana under an assumed identity and coding his reports (and relaying them through other offices) to get them safely back north.