Dagmar was married briefly to a society playboy, but lived most of her life with her older sister after the death of Siggie's husband, Samuel Ferebee Williams.
The duo were on the maiden around the world voyage of the combined ocean liner/cruise ship MS Sagafjord.
These included: The sisters maintained an active social life and were the toast of many private parties[5] in New York City until her death in 1976 when she suffered a massive stroke.
Several good friends, including the photographer Edgar de Evia, arrived for dinner and she was reclined in their living room, her mind still clear, saying "Oh, my dear boys, I believe that I've had a stroke."
Following services at the Frank E. Campbell Funeral Home,[6] she was cremated and interred with her mother in the mausoleum at Ferncliff Cemetery, Westchester County, New York.