23.11.1807 Buckingham calls / 1.3.1827 Hodgets' au soir, w. Buckingham / 24.10.1828 call on Buckingham / 29.10.1829 theatre, adv. Buckingham / 4.6.1830 dine at H Bulwer's, w. Buckingham

The later entries 1827 to 1830 were perhaps James Silk Bockingham (DNB  1786-1855), at a period when he was active in London journalism. In 1807 he was lately married and penniless might well have called on Godwin between his voyages. other possibles in work notes below.

14.11.1807 write to H Siddons & mrs Powel / 2.12.1807 mrs Powel calls / 2.6.1808 Exhibition; adv. mrs Powel

Jane Powell (DNB 1761-1831) played the Countess Orsini in Godwin's play Faulkener at Drury Lane on 16.12.1807. Over the month between 14.11.1807 and the opening night Godwin saw three other of the principal actors in his play, Mr & Mrs Siddons, and Mr Elliston

3.11.1807 call on Kerslake

Only instance of this name in Godwin's diary. Possibles:

2.11.1807 call on Nicholson & Whitworth, draper / 3.11.1807 call on Whitworth, & Nicholson / 22.12.1807 call on Nicholson, & Rodwell

SunFire 1797 James Whitworth & Godfrey Bower Rodwell linen draoers 6 James-st Covent-garden. Whitworth voted 1796 Fox & Tooke 1802 Fox & Gardner. Godfrey Bower Rodwell bapt 29.12.1768 Rearsby, Leics of William & Ann, voted 1796 Fox, 1818 Burdett & Romilly, SunFire 1823 6 James-st (without Whitworth), bankrupt 1831, SunFire 1839 6 James-st, died 1844

31.10.1807 T(homas) T(urner), from T R D L, sups, seeking Sheridan

In GD website T R D L is underlined as unidentified here, but it clearly meant Theatre Royal Drury Lane as on 21.12.1807 and on 15.9.1818 where GD website correctly explains it in a note

29.10.1807 call on Montague, surveyor / 4.11.1807 call on Montague (not seen) / 30.11.1807 call on Montagu, surveyor

SunFire 1781 William Montague, surveyor 13 Bunhill Row
Holdens 1811 James Montague architect & surveyor Morn Post 22.5.1811 appointed surveyor to Blackfriars-bridge, later Surveyor to City of London, his will PCC 6.5.1853
Holdens 1811 William Mountague surveyor 24 Charterhouse-sq (his will PCC 25.4.1843 of Upper Gloucester-st Dorset-sq)

24.10.1807 Mulready sups; adv. Summons / 31.12.1897 Mulready au soir; adv. Summons / 23.9.1808 Summons calls

Perhaps a friend of William Mulready (DNB 1786-1863) but not found in any artist dictionaries. Possible: SunFire 1814 John Townsend Summons 3 Powell's-place City-rd gent, 1836 of Dalston, esq (Champion 18.12.1836)

23.10.1807 call on Glaister

The onl instance of this name in Godwin's diary. But a rare name so probably Samuel Glaister exchange broker of Threadneedle-st (1749-1815 a Quaker) his will PCC 31.3.1815

19.10.1807 write to Rolfe / 26.10.1807 Rolfe calls / 24.11.1821 Rolfe senr calls (not seen) ? 24.4.1822 Rolfe calls on Hayward (not seen) / 29.4.1822 Rolfe at Hayward's & Rosser's

10.10.1807 Satchel calls

The only time this name appeared in Godwin's diary. Perhaps John Satchell timber merchant of Limehouse and SCI member (see my entry for him on this website). The only other Satchells in Holdens 1811 directory were Richard Satchell, brewer (SunFire 1806 at 6 Winsley-st partner William Rowell) and Francis Satchell farmer at Palmer's-green