(711), Mrs.N.W.Aldrich (721), John Markle (723), Mrs.Lewis T.
Hoyt (726), H.E.Huntington (735), Mrs.Hermann Oelrichs (739), Joseph Guggenheim (741), and William E.Iselin (745).
Of this land the stretch from Forty-fifth Street to Forty-eighth on the east side of the Avenue was a part of the fifty-five-acre estate bought by Thomas Buchanan between 1803 and 1807 from the city, which was then disposing of its common land, for the sum of seven thousand five hundred and thirty-seven dollars.

One hundred and eight years later "Fifth Avenue" appraised its value at twenty million dollars.

For his country-seat Buchanan purchased a tract of ground along the East River front between Fifty-fourth and Fifty-seventh Streets.

Buchanan died in 1815.

A daughter, Almy, married Peter Goelet, and another daughter, Margaret, married Robert Ratzer Goelet, which accounts for the large Goelet holdings in this section.
In this stretch of the Avenue and in the adjacent streets is the heart of the new Clubland.