• Name: Parkinson, James
• Gender: Male
• Birth Date: 1730
• Death Date: 25  February  1813
• Occupation: land agent
• Occupation: museaum proprietor

The identification is tentative. Parkinson first appears in 1788 and the name only comes up four times (and one of these is in 1828 and possibly refers to James Parkinson's son Joseph, an architect (Joseph T. Parkinson (bap. 1782, d. 1855). It is possible that Parkinson may be James Parkinson (1755-1824), surgeon and palaeontologist, who became involved in radical politics in the 1790s, joined the LCS, 'was friendly with John Thelwall and the publisher Daniel Isaac Eaton', wrote several pamphlets, 'many under the pseudonym of Old Hubert', and, following the 1794 assassination attempt on George, was interrogated by the Privy Council in 1794 because he knew one of the defendents and admitted he had been asked to take part in the conspiracy (DNB). However, Holcroft's Diary refers to the Parkinson's and their museum in 1798 (216-7); and the connection in 1803 to the museum is significant. There are also three brothers, jeremiah Parkinson (d.1803), John (b. 1761) and William (d. 1834) who were instrumentalists, and given the first of the following entries this may be the connection. The first three entries are - 29.6.1788 Dine at Holcroft's with Shield and Clementi; Parkinson and Bosse . 18.6.1795 Dine at Parkinson's , w. Thelwal, Stevenson and Beaumont . 14.6.1803 Museum, Rymer; adv. Ritson and Parkinson:

• DNB
• T. HolcroftThe Life of Thomas Holcroft, pp. 216-7.
• K. A. Burnim, P. H. Highfill and E. A. Langham, A Biographical Dictionary of Actors, Actresses, Musicians, Dancers, Managers and Other Stage Personnel in London, 1660-1800 (Carbondale, Il., 1973)

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