James Clark was mentioned in the 4 June 1809 will of his father, James Clark, proved on 18 December 1809. James was under the age of 21 years. [Essex County, Virginia, Will Book 17, pages 138–139.]

On 5 February 1841, James Clark witnessed a renunciation by Mary Gouldman in her right as executor in the will of her husband. [Essex County, Virginia, Will Book 24, page 569.]

On 26 March 1841, an inventory and appraisal of the estate of Richard Gouldman was made by James Clark, Edmund Pilkinton, and Robert Kay. [Essex County, Virginia, Will Book 24, page 591.]

On 4 January 1842, orator James Andrews of Essex County complained that Leonard Andrews his brother died about ________ 1830 having written a last will and testament, leaving Ann Andrews, his mother and widow of Mark Andrews his father, your orator James Andrews and Edwin Andrews his only brothers, Elizabeth Clark wife of James Clark, Sarah Atkinson wife of Robert Atkinson his only two sisters, all of Essex County, and William Atkinson and Elizabeth Atkinson then residents of the state of Alabama the only children of Nancy Atkinson, a deceased sister of the testator (the said Elizabeth Atkinson now being the wife of Gabriel Edmonds). Your orator has learned that the said Edwin intends to contest the will when Ann Andrews dies. Filed as Andrews vs. Andrews. [Essex County, Virginia, Box Chancery No. 49, item 49-F-29.]

1860 U.S. Census, Essex County, Virginia
Lloyds Post Office, Page 18
Dwelling 160, Family 155
Clark, James, 67, male, farmer, $2,500 real estate, $6,650 personal estate, born in Virginia
Clark, Elizabeth, 63, female, born in Virginia
Clark, James, 39, male, born in Virginia
Clark, Ro. P., 25, male, born in Virginia
Clark, James, 7, male, born in Virginia
Clark, Geo. W., 5, male, born in Virginia