Lady of a Gilded Age — Suzanne G. Rogers

In the wake of romantic disappointment, Stephen van Eyck and his sister, Louise, decide to leave England and return to Philadelphia. When he inherits a property from an earl he barely remembers, however, they delay their departure long enough to visit the place. Once Stephen discovers the residence is magnificent, he feels compelled to make amends for his windfall to the earl's heirs. Unfortunately, the beautiful Lady Delphine wants nothing to do with him.