Jerry Koosman

Birth Name: Jerome Martin Koosman

Place of Birth: Appleton, Swift, Minnesota, United States

Date of Birth: December 23, 1942

Ethnicity: German

Jerry Koosman is an American professional baseball player. He was a pitcher.

Jerry is the son of Lydia and Martin Koosman.

Jerry’s paternal grandfather was Johannes/John Ernest Koosman (the son of Johannes/John Heinrich/Henry Koosman and Catherine Elizabeth Sukohl). Jerry’s grandfather Johannes was born in Lower Saxony, Germany.

Jerry’s paternal grandmother was Bertha Emilie Beyer (the daughter of Wilhelm Fredrick Beyer and Amelia/Emilie Augusta Ida Boese). Bertha was born in Minnesota, to German parents.

Jerry’s maternal grandfather was Johannes/John Friedrich Wilhelm Graese (the son of Wilhelm Friedrich August Grease and Wilhelmine Christine Kroening). Johannes was born in Wisconsin, to German parents.

Jerry’s maternal grandmother was Anna Wilhelmine Augusta Hill (the daughter of Casper Frederick Hill and Emilie/Emilia Marie August Koepsell). Anna was born in Wisconsin, to ethnic German parents. Emilie was born in Powiat kamieński, Zachodniopomorskie, Poland, the daughter of Joachim Friedrich Koepsell and Sophie Friedrike Charlotte.

Sources: https://sabr.org

Genealogies of Jerry’s parents – https://www.findagrave.com