Answer: idatarbell

AnswerCrossword Clue
IDATARBELL

"The History of the Standard Oil Company" author

IDATARBELL

Progressive Era muckraker

IDATARBELL

Muckraker

IDATARBELL
"The History of the Standard Oil Company" journalist
IDATARBELL
Noted early 20th-century writer-reformer
IDATARBELLExposer of Standard Oil during the Progressive era