On 28 November 1925, Zhitlowsky's 60th birthday was celebrated at the Manhattan Opera House in New York. Similar celebrations were held in other American and European cities visited by Zhitlowsky. A Zhitlowsky memorial volume was published in Berlin containing articles and reminiscences of his intimate friends and disciples. At Zhitlowsky's suggestion, the proceeds from the book were given to the Yiddish Scientific Institute (YIVO) of Vilno, which Albert Einstein, Sigmund Freud, as well as Zhitlowsky, were members of its Honorary Board of Directors.