From that date to 1450, it is sometimes with, and sometimes without the prefix, after which date, this last is finally dropped, and it is simply ffeld till 1570, or so, when the modern spelling came in and it is written ffield, or ffeild. The family has disappeared from Sowerby, but on their old estate, the name survives in " Field House," the residence of Col. Stansfeld, built about a century and a half since. Adjoining it is "old Field House," once the home of the family, and erected probably in the sixteenth century. An addition in the rear, of a later period, has on it the date 1630. It is a large edifice resembling the manor houses of that time, now somewhat modernized and divided up, giving shelter to half a dozen families. About a quarter of a mile from this building formerly stood on higher ground a more ancient one, called " Upper Field House," which was pulled down about fifty years since by Col. Stansfeld's father. " Field House," Sowerby, is mentioned in the Wakefield Manor rolls as early as 1440, and in 1500 there appear to have been there, two buildings of the name, one of which is distinguished as " Nether Field House."

From Sowerby the family spread itself around the neighborhood, and during the latter half of the 14th, 15th and 16th centuries they are found at various places within a radius of twelve or fifteen miles, and mostly at or near Halifax, Bedford and Wakefield.