A New York Socialite Vanished Without A Trace In December 1910

The last time anybody saw Dorothy Arnold, she was outside of a bookstore at 5th Avenue and 27th Street in Manhattan. It was midday on December 12, 1910. She was browsing in a bookstore when she ran into a friend. She told the friend she planned to take a walk in Central Park and meet her mother for lunch at the Waldorf-Astoria hotel. At the time, the Waldorf-Astoria was on the current site of the Empire State Building, so it was just a few blocks north of the bookstore.

According to the Charley Project, Dorothy was carrying approximately $30 when she left her home on the Upper East Side — that would be worth about $940 today. She was well dressed and planning to shop for a dress for an upcoming party. Her mother had offered to accompany her that day, but Dorothy declined, instead telling her mother she would meet her at the Waldorf.

Dorothy never made it to lunch with her mother.

When the 25-year-old didn’t return to the family’s home on the Upper East Side that night, her parents assumed she had stayed the night with a friend. Another day passed before they grew worried, but they did not contact the police. Instead, they called a private investigator in an attempt to avoid the publicity that could negatively impact the family’s social standing in New York City’s upper crust.

The Only Clues

The private investigator learned that Dorothy had a secret post office box that she’d opened months before her disappearance. In addition to her life as a socialist, Dorothy was an aspiring writer who was using the box to hide rejected manuscripts from her reportedly critical family members.

The investigator also learned Dorothy was dating a much older man, George C. Griscom Jr., an engineer in Philadelphia, some 100 miles away from New York. While Dorothy had been to see him earlier in 1910 while telling her family she was spending the week with a girlfriend, Griscom was not believed to be a suspect in the disappearance. He was in Italy when Dorothy went missing.

There were a handful of theories about her case. Some believed she’d been murdered and thrown into one of the lakes in Central Park. Others speculated that she’d died of a botched abortion or even planned her disappearance, but there was never any evidence to substantiate any of those claims.

The unsolved case was eventually closed, and all of Dorothy’s loved ones went to their graves without knowing what happened to her. Her case was written about often through the 20th century, and continues to be the subject of podcasts, articles, and speculation in online forums.