's
Central Library, which bears his name Since the 1950s Elyachar started contributing to American and Israeli causes. He was the founder and president of the American Society for Technion, an organization created to assist the
Technion – Israel Institute of Technology, the largest technical education university in
Israel. He was elected by the Board of Governors at the Technion to serve as honorary president of the Society after serving three times as president in the Society. He donated funds for scholarships for Technion students and for the building of the
Central Library of the Technion, which was accomplished in 1965 when the library moved from the old building in
Hadar HaCarmel to the new campus in
Neve Shanan in
Haifa. Therefore the library is named after him. He endowed a chair in Sephardic studies at
Yeshiva University and donated to the school his collection of Judaica in the
Spanish language and
Ladino, the largest such collection in the United States. ==Family==