Known Activities
Early Life and Education
William Allen Pinkerton was born in Dundee, Illinois on April 7, 1846, the son of Allan Pinkerton and his wife. The family's roots in the Dundee area predate the founding of the detective agency, which Allan Pinkerton established after settling in the region as a Scottish immigrant. William reportedly attended Notre Dame University at approximately age twenty, suggesting a degree of formal education uncommon for practitioners of his later trade. (Source: alaska-daily-empire-1923-12-11) According to The Dawson News, he attended Notre Dame after the Civil War, in which he served in the Union Army — a detail not noted in earlier sources reviewed by The Kiln. (Source: dawson-news-1923-12-25)
Career in the Detective Agency
Following his father's death in 1884, William and his brother Robert A. Pinkerton jointly succeeded to the leadership of the Pinkerton National Detective Agency. William made his primary home in Chicago, Illinois, keeping the firm anchored in the Midwest while overseeing its national operations. He became particularly known for his work in bank protection and his efforts to reduce bank robbery across the United States. According to The Dawson News, William worked in detective work for more than fifty years. (Source: dawson-news-1923-12-25)
According to contemporary accounts, William Allen Pinkerton issued a celebrated public warning to professional bank robbers — a statement that reportedly contributed to a measurable reduction in bank robberies during his tenure. (Source: alaska-daily-empire-1923-12-11) The precise text and circumstances of this warning are not fully documented in sources currently held by The Kiln; researchers interested in this claim may wish to consult holdings at the Chicago History Museum or the Library of Congress Chronicling America collection.
William earned the nickname "The Eye," reportedly derived from an encounter in which a captured absconder asked him, "You never sleep, do you?" (Source: dawson-news-1923-12-25) The nickname's connection to the Pinkerton Agency's long-standing "We Never Sleep" motto and its open-eye logo is evident, though the precise origin story has not been independently verified in sources currently available to The Kiln.
The Dawson News also noted that Allan Pinkerton, William's father, was credited with organizing the first United States Secret Service — a claim consistent with Allan Pinkerton's known role as a Union intelligence operative during the Civil War era, though the precise nature of that connection to the formal Secret Service has been a matter of historical discussion. (Source: dawson-news-1923-12-25)
Personal Life
William Allen Pinkerton married Margaret S. Ashling of Adrian, Michigan. She predeceased him, reportedly in 1896. The couple had two daughters: Mrs. Joseph O. Watkins and Mrs. William C. Pullman. (Source: alaska-daily-empire-1923-12-11) ⚠️ CONTRADICTION: The Dawson News lists his surviving daughters as Mrs. I.O. Watkins and Mrs. W.C. Pullman — the latter name consistent with earlier reporting, but the former rendered with the initials "I.O." rather than "J.O." Whether this reflects a typographical variant or a genuine discrepancy in the sources has not been resolved. (Source: dawson-news-1923-12-25) The Dawson News also names a surviving sister, Mrs. William J. Chalmers, not mentioned in earlier sources reviewed by The Kiln. (Source: dawson-news-1923-12-25)
In his later years, William Pinkerton moved to Los Angeles, California, where he was living at the time of his death. (Source: dawson-news-1923-12-25)
Death and Burial
William Allen Pinkerton died suddenly in Los Angeles, California on December 11, 1923, with his nephew at his bedside. He was 77 years old. His death was reported in newspapers across the country, including The Alaska Daily Empire of Juneau, Alaska, and The Dawson News of