1879 – Born in the western Lithuanian village of Kalvarija.
1903 – He received his medical degree in neurology and other specialties.
1912 – he married Miriam Albin, who bore him two children, a son, Joel, and a daughter, Sara.
– During the First World War, Elkes served as a physician in the Russian Army and was awarded a
number of decorations.
1923 – He was head of the department of internal medicine in the Bikkur Holim Jewish hospital in Kovno.
1943 – He was granted an audience with SS Standartenführer Karl Jäger, formerly commander of Einsatzkommando 3 of Einsatzgruppe A, and by then head of the Sicherheitspolizei and SD for Lithuania, a man whose infamous report of 9 February 1942 had boasted of killing 138,272 people, more than 98% of whom were Jews and 34,464 of whom were children.
– He was able to free a few of the Jews who were to meet their doom during World War II.
1944 – He died there on 17 October, after a hunger strike, having refused to participate in "selections" in the camp.