I assume your copy is one of "The Wildbores in America"Baltimore, Maryland: George W. King Printing Co., 1933.JOHN REID WILBOR andBENJAMIN FRANKLIN WILBOUR
That is just what you said - a revised and augmented edition of the original book published in 1907.Additional books on the family are:
The Wildbores in America,vol.2.Published 1933Revisions to 1938 This second book continues the genealogical record of the Wildbore family, showing the seventh generation and part of the eighth generation.
The Wildbores in America, Vol. 3.Published 1933Revisions to 1939 This is the third book of the Wildbore family, completing the eighth generation.
The Wildbores in America v.4.Published 1933Revisions to 1940 The fourth volume of the Wildbore family in America which completes the genealogical recordof the Wildbore famiy, completing the ninth generation.
The Wildbores in America v.5.Published 1933Revisions to 1941 The fifth volume of the Wildbore family in America which continues with the record of thetenth, eleventh, and twelfth generations of the Wildbore family.