I am trying to find the lyrics also. What I remember from memory is as follows

Hilda, oh Hilda I do think your grand,
Oh will ya, oh will ya , will you hold my hand,
And if you should ask do you love me true,
Sing ya sure ya betcha I sure think I do,

Yes I do, oh I do
By golly, by yimmny, I sure think I do,
And if I should ask you, do you love me true,
Sing ya sure, ya betcha, I sure tink I do

In Wisconsin, Ole Jonsen,
Met a sweet lass ???????????
Her name Hilda Swensen
He wooed her, he pursued
Now Jonsen and Swensen ????????

This how I remember it but I can't remember if they are the right lyrics. Hope this helps