Elkan Nathan Adler

Elkan Nathan Adler was an English author, lawyer, historian, and collector of Jewish books and manuscripts. Adler's father was Nathan Marcus Adler, Chief Rabbi of the British Empire. He traveled extensively and built an enormous library, particularly of old Jewish documents. Adler was among the first to explore the documents stored in the Cairo Genizah, being in fact the first European to enter it. During his visits to Cairo in 1888 and 1895 Adler collected and brought over 25,000 Genizah manuscript fragments back to England.

Read more on Wikipedia