During his stay in Berlin in 1764, Boswell lived in the house of Karl David Kircheisen, the president of the Berlin city council.
Norton Nicholls - Correspondent of Thomas Gray
Norton NichollsBorn 1742
Son of Norton Nicholls, merchant, and Jane Floyer, dau of Lieut-Col Charles Floyer. Educated at Eton, and at Trinity Hall, Cambridge, where he met William Johnson Temple. Ordained in 1767, he became the rector of Lound and Bradwell, Suffolk (1767-1809). An able landscape designer (Link).
A close friend of the poet Thomas Gray in the poets' later years. Nicholls and Gray made an excursion through the Western Counties in 1770, which may be seen as parallel to Boswell and Johnson's tour of the Hebrides in 1773, and in some other ways, the relationship between the Gray and Nicholls seems to have resembled that of Boswell and Johnson. Nicholls wrote Reminiscences of Gray, which was together with some editions of the correpondence between the two.
Temple introduced Boswell to Nicholls, an old Cambridge chum of his, on May 13, 1763. Boswell and Nicholls met a few times more before Boswell left for Holland in August of that year. They didn't meet again until Augustu 10, 1774 in Edinburgh. Nicholls's cousin Frances Floyer was married to John Francis Erskine, an old classmate of Boswell's at Edinburgh University.
The Correspondence of Thomas Gray and the Rev Norton Nicholls was published in 1843, and is often available via the AbeBooks.com used books search engine.