He was born in Yonkers, New York. His father Francis N. Bangs was a lawyer in New York City, as was his brother, Francis S. Bangs.
He went to Columbia College from 1880 to 1883 where he became editor of Columbia's literary magazine, Acta Columbia, and contributed short anonymous pieces to humor magazines. After graduation in 1883 with a Bachelor of Philosophy degree in Political Science, Bangs entered Columbia Law School but left in 1884 to become Associate Editor of Life under Edward S. Martin. Bangs contributed many articles and poems to the magazine between 1884 and 1888. During this period, Bangs published his first books.
In 1888 Bangs left Life to work at Harper's Magazine, Harper's Bazaar and Harper's Young People, though he continued to contribute to Life. From 1889 to 1900 he he
