Soon, they bought all of the land between two estates held by his family in Morris County, New Jersey that lay between Spring Valley Road in the community of New Vernon and Madison Avenue in Madison. Most of the area is part of the Harding Township area which extends from Chatham to Morristown. The last portion purchased, that had belonged to Charles W. Harkness, the third largest stockholder of Standard Oil shares, named Giralda Farms, was purchased by Geraldine in 1923. She maintained it as a grand country estate among the rolling hills.