The crusading American journalist Ida Minerva Tarbell (1857-1944) is known as the muckraker who cracked the oil trust. She was also an outstanding biographer of Abraham Lincoln.

Ida Tarbell was born on Nov. 5, 1857, in Erie County, Pa., the daughter of a small oilman driven to the wall by the Rockefeller oil monopoly. Tarbell, unlike many famous people, spent an unusually well-adjusted childhood and had a healthy appreciation of her parents. She wrote of the log house in which she was born and of the pleasant memories it gave her. She felt loved and was perhaps even smug about it.

In Titusville High School, Tarbell led her class and decided never to marry. She took a bachelor of arts degree at Allegheny College in 1880. In 1882 she became a staff member of the Chautauquan newspaper and eventually became its managing editor. Driven by desire for more education, she went to...