In 1859, he went to the Red River Valley in the Midwest as The Evening Post's correspondent.
Marble's World building was not attacked during the New York City Draft Riots of 1863, unlike the Republican newspapers The Tribune and The Times.
In 1864, the World was charged with fraud after it published communications from President Lincoln that turned out to be forged.
Marble, and the World, was allowed to resume publication three days later.
[2] In 1872, the World vigorously opposed Horace Greeley's presidential campaign.