He and his wife maintained his grandmother 's Federal - style house at 21 Stuyvesant Street .
After 1898 their New York house was a brick and limestone Italianate structure at 25 East 78th Street at Madison Avenue .
He and his wife maintained his grandmother 's Federal - style house at 21 Stuyvesant Street , but after 1898 their New York house was a brick and limestone Italianate structure at 25 East 78th Street at Madison Avenue .