Mendel Kaczer was born in 1901 in Tarnopol to Manuel Kaczer and Scheindel Riwe Krochmal. Scheindel was the sister of my 2nd great grandmother Laura Krochmal. This means Mendel was the first cousin to my great grandfather Markus Rothstein. In 1932 he married Regina Zimmerman and in 1934 they had a daughter Pola. At some point he became an officer in the Polish army. While in the army he was captured by the Russian army and taken to the Katyn Forest as a prisoner of war. In the Spring of 1940 he, along with around 22,000 others, were murdered in what is known as the Katyn Forest Massacre. Pola was also murdered in the Holocaust and I am assuming Regina was as well.