The violinist who performed is not named in the program. Sascha Jacobsen's name has been added as per an advertisement published in the Yiddish language newspaper The Forward.
Page 17 Advertisements Column 2 | Forverts | 4 April 1914 | Newspapers | The National Library of Israel. https://www.nli.org.il/en/newspapers/frw/1914/04/04/01/article/67.2. Accessed 10 Sept. 2026.