Wedgwood was briefly Nicholson’s employer, then (along with Boulton) a colleague in a London scientific society. Davy, Dalton and Berzelius were among contributors to Nicholson’s pioneering popular scientific journal. Carlisle was a friend of his, collaborating in the discovery of electrolysis; Godwin another friend. Volta met Nicholson on a visit to England, and acknowledged his influence. Koenig consulted Nicholson in his role as patent agent about his own invention of a high-speed printing press, featuring an undeveloped idea of Nicholson’s. Hazlitt simply recorded that he’d had an interesting conversation with him.