• Name: Lockhart,
• Gender: Male
• Birth Date:
• Death Date:

'Lockhart' appears in 1809-10 at Joseph Johnson's dinners along with Henry Fuseli and John Bonnycastle. His identification is uncertain but it may be the mathematician James Lockhart, author of A Method of Approximating Towards the Roots of Cubic Equations belonging to the Irreducible Case (London: I. Harrison and J.C. Leigh, 1813), about which there is very little known.

Alternatively, it may be James Ingram Lockhart, MP for Oxford (1807-1812; 1820-1826). However, it seems unlikely that he would have been part of Johnson's circle despite there being a family relationship with the critic, John Gibson Lockhart, who appears later in the diary.

• The Gentleman's Magazine, 221:2 (Jul-Dec, 1866), p.198.

This table lists the people this person is most frequently noted with in the diary.