Her investigative journalism series first appeared in a 1903 issue of "McClure's Magazine" alongside articles by Lincoln Steffens and Ray Stannard Baker that ushered in the era of muckraking journalism.
Her investigative journalism was serialized from 1902 to 1904 in "McClure's Magazine;" her first article on Standard Oil was published with pieces by Lincoln Steffens and Ray Stannard Baker. Together these articles ushered in the era of muckraking journalism.