[1] His book collection constitutes an important part of the Hebrew section of the Bodleian Library in Oxford.

David Oppenheim's teachers included: Yair Bacharach, Gershon Ashkenazi, Ya'akov Sack (father of Tzvi Ashkenazi, the Chacham Tzvi),Benjamin Wolf Epstein and Isaac Benjamin Wolff.

[2] In 1681, he married Gnendel, daughter of the "court Jew" Leffmann Behrends (Lipmann Cohen) of Hanover.

[2] His extraordinary collection of manuscripts and prints was bought by the Bodleian Library in Oxford in 1829 for 9,000 thalers.

How One Collector Built History's Most Enduring and Remarkable Jewish Library, Yale University Press, New Haven & London 2019.