Martha Kostreva, 1930 US Census, Brazeau, Oconto, WI.
Female age 17 single, daughter, birth year est. 1913. Her parents are William and Molly Kostreva who were born in Poland. Both parents are 55 yrs old. Martha has one older sister, Lillian, and six older brothers.
"United States Census, 1930," database with images, FamilySearch
