Birth Name: Zachary Andrew Kornfeld
Place of Birth: Scarsdale, New York, U.S.
Date of Birth: July 26, 1990
Ethnicity: Ashkenazi Jewish
Zach has said, “I have a grandmother from Germany. I have two grandfathers from somewhere in Russia.”
A DNA test whose results were displayed on YouTube stated that Zach’s genetic ancestry is:
——–*88.7% Ashkenazi Jewish
——–*4.2% Northwestern European
————*3.9% Broadly Northwestern European
——–*0.8% Eastern European
——–*0.4% Southern European
————*0.4% Broadly Southern European [Iberian or Italian]
*0.3% Middle Eastern & North African
Zach’s paternal grandfather was Bernard Kornfeld (the son of Abe Kornfeld and Gussie Sapkin). Bernard was born in New York, to Russian Jewish parents. Abe was the son of Chaim Kornfeld and Ida R. Loback/Toback. Gussie was born in Kovnia, the daughter of Boruck Sapkin and Ida Chiat.
Zach’s paternal grandmother was named Evelyn Wahrhaftig (the daughter of Jacob/Jakob Salomon Wahrhaftig and Miriam/Mariem/Mary). Evelyn was born in Germany, to Polish Jewish parents, and had come to the U.S. in 1939. Jacob was born in Lezapk. Miriam was born in Kahusz.
Zach’s maternal grandfather was Irwin/Irving Isaacs (the son of Manuel Isaacs and Helen Biederman). Irwin was born in Pennsylvania. Manuel was a Hungarian Jew or a Czech Jew, and was the son of Anthony Isaacs and Sarah Grose. Helen was born in Pennsylvania, to Czech Jewish/Austrian Jewish parents, Henry Biederman and Teney/Teny Kaufman.
Zach’s maternal grandmother is Rhoda Jackman (the daughter of Irving Jackman and Adrienne Wittstein). Rhoda was born in New York. Irving was the son of Hyman Jackman and Bessie Beller. Adrienne was the daughter of William Samuel Wittstein, whose parents were born in Germany, and of Leah Kanevsky, who was born in Russia.
Sources: Zach’s paternal grandfather, Bernard Kornfeld, on the 1930 U.S. Census – https://www.familysearch.org
Obituary of Zach’s paternal grandfather, Bernard Kornfeld – https://www.nytimes.com
Obituary of Zach’s paternal grandmother, Evelyn (Wahrhaftig) Kornfeld – https://www.legacy.com
Zach’s maternal grandfather, Irwin/Irving Isaacs, on the 1930 U.S. Census – https://www.familysearch.org
Marriage record of Zach’s maternal great-grandparents, Manuel Isaacs and Helen Biederman – https://www.familysearch.org
Zach’s maternal great-grandmother, Helen Biederman, on the 1920 U.S. Census – https://www.familysearch.org