As indicated by the caption, this image from 1922 shows Clarence H. Mackay and his mother flanking his oldest daughter, Katherine, at the Harbor Hill reception that followed her marriage to Mr. Kenneth O'Brien.
The caption accompanying this image reads as follows:
1922: Clarence H. Mackay and his mother, flank his oldest daughter, Katherine, at the Harbor Hill reception that followed her marriage to Mr. Kenneth O'Brien, who became a judge. Notwithstanding the family's Catholicism, and the beauty of their rose bower, after several years and children, the O'Briens divorced.
See Harbor Hill, Clarence Hungerford Mackay's Mansion.
