He may have been an orphan, along with 2 siblings:
1930 census
Name: Ross Arndt
Gender: Male
Birth Year: abt 1916
Birthplace: Indiana
Race: White
Home in 1930: Northville, Wayne, Michigan, at the Wayne County Training School
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Marital Status: Single
Father's Birthplace: Indiana
Mother's Birthplace: Indiana
Occupation:
Education:
Military Service:
Rent/home value:
Age at first marriage:
Parents' birthplace:
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Neighbors: View others on page
Household Members:
Name Age
Ross Arndt 14
Also listed:
Possible siblings, Hazel Arndt age 16
Arthur Arndt age 11 both born in Indiana as was Ross