According to the Throckmorton Family History, James Cox was grandfather to Governor James Cox, a hero of the Revolution and a member of Congress from Ohio, who died in 1810 before his term expired.
He was described in his will as "James Cox, of Upper Freehold, in the County of Monmouth and Province of New Jersey, Gentleman.''
His political sympathies were with the people as opposed to the proprietaries. If he were not as active and outspoken as his brother John and others had been at the time of the outbreak at Middle- town, he was not less interested in the success of the popular movement When the rule of the Assembly had become intolerable and the titles of freeholders to their lands seemed likely to be called in question, the governing body were denounced as enemies to the country.
In 1707, an attempt was made to bring about the dissolution of the Assembly and to elect a new one. With this end in view a fund was raised, known as "the Blind Tack," to which James Cox and his brother, Joseph, were liberal contributors. Whatever may have been the outcome of that campaign, the rights of freeholders were ultimately assured and he lived for many years afterwards in peaceful possession of his estate at Upper Freehold, which passed at length, without a cloud upon its title, to his numerous family.
He was long identified with the Baptist Church and died at a good old age in the religious faith in which he had been reared. His body was interred in the family plot on his farm at Upper Freehold, where, as his will states, many of his kindred were buried. His own grave and the graves of two others are all of which any trace remains.
http://xpda.com/family/etc/The_Cox_Family_in_America.pdf