The double mansions of William H. Vanderbilt and family between 51st and 52nd Streets on the west side of Fifth Avenue, completed in 1881. On the next block is the limestone mansion of William K. and Alva Vanderbilt. The brownstones beyond were soon replaced with three more Vanderbilt houses. (New York Social Diary)
Virginia Fair Vanderbilt House | New York, NY. Construction (1905-1907) underway on the residence of Mr. & Mrs. W. K. Vanderbilt, Jr. at 666 Fifth Ave. On the left, Mr. W. K. Vanderbilt's "Petit Chateau."