Eleanor Read (often spelled incorrectly as Reed) was the daughter of William Read, born in England Jan 7, 1756 and Nancy Keys, born in New York on April 11, 1770. William and Nancy were married Aug 3, 1788. I do not have a marriage date for James and Eleanor but Eleanor was listed as the wife of James Cadwell in William Read's will.

William Read will transcript:
http://files.usgwarchives.net/ny/saratoga/wills/readread841g...