- From The Jewish Encyclopaedia, 1916
- A British Foreign Office Report, 1919
US Commission and Consular Reports
- Three reports on the state of the Jews in Latvia, filed between the early 1920s and early 1940s.
Jewish Communities in Kurland, by Shaul Lipschitz
- From The Jews in Latvia, 1971
The Autobiography of Solomon Katzen: The Early Years 1902-1923
- Solomon Katzen's amazing recollection of his early years in Sassmacken as well as of his period of exile in Russia and return to Latvia en route to the USA.
The Expulsion of the Jews from Lithuania in the Spring of 1915, by Anatolij Chayesh
- A description from the Litvak SIG web site of events surrounding the expulsion of Jews from the western part of the Kovno Gubernia, in parallel with the expulsion of the Jews from Courland (see Lipschitz memoir above).