Alfred Nicolson dines 19.6.1803
This may well have been the 15 year old son of Francis Nicholson 1753-1844 painter who was living in Somers Town by 1803. Alfred's dates were 1788-1833, he served in the Navy before working as a painter. See Nicholson, Catherine for A Nicholson entries that could have been him, though probably not. Also some plain Nicholson entries could have been his father Francis rather than Godwin's close friend William Nicholson, but I haven't noticed any that look like they might have been. I don't think there was any Alfred in William Nicholson's family.