On the 1930 census, she was a roomer in Rapidan, Blue Earth County, Minnesota. Is she teaching perhaps? Maybe there are records in Blue Earth County for her? Families would take in teachers as boarders back then.

me: Norma Huseth
Event: Census
Event Date: 1930
Event Place: Rapidan, Blue Earth, Minnesota
Gender: Female
Age: 24
Marital Status: Single
Race: White
Birthplace: Minnesota
Estimated Birth Year: 1906
Immigration Year:
Relationship to Head of Household: Roomer
Father's Birthplace: Norway
Mother's Birthplace: Norway
Enumeration District Number: 0032
Family Number: 81
Sheet Number and Letter: 4B
Line Number: 64
NARA Publication: T626, roll 1080
Film Number: 2340815
Digital Folder Number: 4609320
Image Number: 00867
Household Gender Age
Carl O Bosin M 42
Maude Bosin F 34
Lloyd E Bosin M 14
George Basin M 13
Wayne Bosin M 14
Harold Bosin M 10
Julia Solie F 25
Cora Powers F 23
Norma Huseth F 24
Gladys Wamdersee F 20

BLUE EARTH COUNTY HISTORICAL SOCIETY
415 Cherry Street
Mankato, MN 56001-3741
507-345-5566
bechs@hickorytech.net
www.bechshistory.com
Exec. Director: Jessica Potter

Rapidan Heritage Society
55466 190th Street
Mankato, MN 56001
Contact: Daryl Lachmiller, President
507-278-3535
www.rapidandepot.com/index.html

maybe there is some history of her in the Rapidan School?