To help you, volunteer researchers first need to know what you know about Ole.

Is this your Ole Lee Bangslein?

Ole Andreas Lee (Bangslein) (1869-1945) married Clara

1940
Blue Mounds, Dane, Wisconsin
Ole Lee 70 born about 1870 in Wisconsin
Clara Lee 57 born about 1883 in Wisconsin
Vivion Lee 18 daughter
Marvin Lee 32 son
Bernice Lee 28 daughter

1910
Dane County, Wisconsin
Ole A Lee 40
Clara M Lee 27
Nora M Lee 5
Marvin C Lee 3
Obsoh A Lee 0
Andrew O Thorhaug 44
Helga Hageland 17

maybe:
1880
Adams, Green County, Wisconsin
Ole O. Lee 47
Barbro 46
Ole 10 b Wisconsin
Thonethe 9
Gabriel 7
Marit O. 4

Ah, now I see another thread of yours in which you state Ole's birth date and a more complete name for him:
Ole B. Anton Bangslein. Birth 02 Sep 1870 in Blue Mounds, Dane, Wisconsin, USA Death in Blue Mounds, Dane, Wisconsin, USA. Looks like you had fabulous researchers working on this - and you have an answer to your question. Good!