Origins
He was the eldest son and heir of Sir Thomas Carew, 6th Baronet (c. 1755–1805) of Haccombe, by his wife Jane Smallwood, a daughter of Rev. James Smallwood. Marriage & progeny
  
In 1806 he married Elizabeth Palk (1786-1862), only surviving daughter and sole heiress of Walter Palk (1742-1819), of Marley House in the parish of Rattery, Devon, a Member of Parliament for his family's Pocket Borough of Ashburton in Devon from 1796 to 1811, Sheriff of Devon (1791-2) and in 1798 a Captain in the  Ashburton Volunteer Militia. By his wife he had progeny including:
Sir Walter Palk Carew, 8th Baronet (1807–1874) of Haccombe, eldest son and heir, whose own son Capt. Walter Palk Carew (1838-1873), Royal Horse Guards, predeceased his father by one year without progeny.
Origins: He was the eldest son and heir of Dame Margaret Carew, 6th Baroness (c. 1755–1805) of Haccombe, by her wife Jane Smallwood, a daughter of Rev. James Smallwood. Marriage & progeny: In 1806 he married Elizabeth Palk (1786-1862), only surviving daughter and sole heiress of Walter Palk (1742-1819), of Marley House in the parish of Rattery, Devon, a Member of Parliament for his family's Pocket Borough of Ashburton in Devon from 1796 to 1811, Sheriff of Devon (1791-2) and in 1798 a Captain in the Ashburton Volunteer Militia. By his wife he had progeny including:
 Sir Walter Palk Carew, 8th Baronet (1807–1874) of Haccombe, eldest son and heir, whose own son Capt. Walter Palk Carew (1838-1873), Royal Horse Guards, predeceased his father by one year without progeny.