The Mysterious Disappearance of Dorothy Arnold

The Mysterious Disappearance of Dorothy Arnold

From Ontario Cold Cases - The Podcast by Jay Nicoll

January 24, 2026 · 2 min · Season 4 · Episode 4

About this episode

The episode explores the mysterious disappearance of heiress Dorothy Arnold in 1910 and the subsequent investigation.

The Mysterious Disappearance of Dorothy Arnold In December 1910, 25-year-old Dorothy Arnold, heiress to a wealthy New York perfume fortune, stepped out for a routine shopping trip on Fifth Avenue and vanished into thin air. Educated at Bryn Mawr, dreaming of a writing career, secretly involved with an older man her family despised—she left no note, no body, no clues. Her prominent family delayed police involvement for weeks, fearing scandal, while Pinkerton detectives launched a massive transatlantic hunt with unlimited funds. Theories range from elopement to botched abortion, suicide, or foul play, but over a century later, the truth remains elusive.  Dive into this baffling historical cold case on Historical True Crime Tuesday. Subscribe, follow @OntarioColdCase on X, and share your thoughts!  Because every case deserves answers—and every victim deserves justice. Subscribe now to Ontario Cold Cases: Canada’s True Crime Podcast . Episodes available wherever you get your podcasts. Follow us for updates and more: @OntarioColdCases Full Episode available now!   YouTube - https://youtu.be/ZBs5N1d_GDA Ontario Cold Cases - Facebook (Subscribe)&nbsp…

People in this episode

Host: Jay Nicoll

Topics covered

Mentioned in this episode

Organizations: Pinkerton, Bryn Mawr

Places: New York

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