Moshe was born in 1897. Moshe's father was Herco SZEPS and his mother was Sara Rachel MARKOWLECKA. His paternal grandparents were Mirl SZEPS and Fiszi WALD. He had two brothers and four sisters, and also a sibling of unknown gender, named Yekiel, Fiszel, Dora, Roza, Ita, Chaja and Tobcia. He was the third youngest of the eight children. He died at the age of 21 in 1918.