The family of the late Yemenite Jew Yehuda Levi Nahum (1915-1998) has donated his entire collection to Israel’s National Library. Over 60 years, Nahum assembled some 45,000 Yemenite-Jewish manuscripts plus 15,000 Hebrew fragments including renditions of works by Maimonides.
https://www.jns.org/jerusalem-library-gets-45000-jewish-manuscripts-from-yemen/