James Calthorpe (1604 – 19 April 1652) of East Barsham Norfolk, was a Sheriff of Norfolk in 1643.
[1][2] Around 1627 Calthorpe married firstly Mary (c.1612–1640), daughter of William Fermor and Anne, daughter of Robert Brooke.
All their children died before she did.
[3][4] Calthorpe married secondly Katherine (1616-1677),[5] daughter of Sir Edward Lewknor (died 1618) and Mary Neville.
[6] They had a son Christopher Calthorpe (died 1718), (who became a Knight of the Bath and married Dorothy, daughter of Sir William Spring); and two daughters Elizabeth and Ann (who married Sir Thomas Le Strang).