As indicated by the caption, this is an image of Katherine Mackay (Katherine Alexandra Duer (US1797spouse1)) dressed for a fancy dress ball in 1907 that was taken in her bedroom.
A photograph of Boldini's 1905 portrait of Katherine Mackay's (Katherine Alexandra Duer (US1797spouse1)) friend, "Coon," Consuelo, Duchess of Marlborough, with her son, Lord Ivor Spencer Churchill, can be seen on Katherine Mackay's bedroom mantlepiece on the right side of this image.
The caption accompanying this photograph reads:
1907: Katherine Mackay arrayed for a fancy dress ball, portrays her prominent ancestor, Kitty Duer, Lord Stirling's daughter, and a famous belle of Revolutionary days. Taken in Katherine Mackay's bedroom, this photograph shows the gas fire, from ceramic 'logs', utilized upstairs at Harbor Hill.
See Harbor Hill, Clarence Hungerford Mackay's Mansion.
