NOTE: I Ran across this song while surfing the net. It was written by Wilf Carter a Canadian Country Music Singer. He lived from (December 18, 1904 - December 5, 1996), and was also known as Montana Slim. In addition to being a Canadian country music singer, he was also a songwriter, guitarist, and yodeller. He worked in Western Canada and I am guessing the reference to "Yoho" is from the Yoho National Park in British Columbia.

My Little Yoho Lady lyric by Wilf Carter

I'm longing tonight once again to roam
In a beautiful valley I could always call home
There's a girl I adore and I'm longing to see
In a beautiful yoho valley

My little yoho lady-o
And I'll sing you a song while the moon's rolling low
My little yoho lady-o
In a beautiful yoho valley

Oh silvery moon I'm so lonely tonight
To stroll once again in that beautiful light
Dream of a girl oh so happy and free
In a beautiful yoho valley

My little yoho lady-o
I'll sing you a song while the moon's rolling low
My little yoho lady-o
In a beautiful yoho valley

It seems when we met all my dreams had come true
I gazed in those beautiful eyes oh so blue
Your smile keeps lingering like a golden memory
Of a beautiful yoho valley

My little yoho lady-o
And I'll sing you a song while the moon's rolling low
My little yoho lady-o
In a beautiful yoho valley

My little yoho lady-o
And I'll sing you a song while the moon's rolling low
My little yoho lady-o
In a beautiful yoho valley