Stamford Raffles' perspective on Leyden
Sir Thomas Stamford Raffles mentioned Leyden in his introduction to the History of Java in 1816, emphasizing his friend's curiosity and intelligence. When Raffles' wife Olivia died in 1814, she was buried next to Leyden in the European cemetery in Batavia (Jakarta). From Reith's Life of John Leyden, (1923), pages 318-319:
There was one (J.C. Leyden, who accompanied the expedition to Batavia in 1811, and expired in my arms a few days after the landing of the troops) dear to me in private friendship and esteem, who, had he lived, was of all men best capable of supplying those deficiencies which will be apparent in the very imperfect work now presented to the public. From his profound acquaintance with Eastern languages and Indian history, from the unceasing activity of his great talents, his other prodigious acquirements, his extensive views, and his confident hope of illustrating national migrations from the scenes which he was approaching, much might have been expected; but just as he reached those shores on which he hoped to slake his ardent thirst for knowledge, he fell a victim to excessive exertion, deeply deplored by all, and by none more truly than by myself.
[Source: Reith, John. Life of Dr. John Leyden: Poet and Linguist. Galashiels: A. Walker & Son, 1923. 318-319.]