Waddely-Achee of (Atcha), a camp song I learned from a Girl Scout Leader seems to share a significant number of lyrics with the old song "Doodle-Doo-Doo" by Art Kassel & Mel. Stitzel.

WADDELY-ACHEE (origin unknown)
"Waddely Achee
Waddeley Achee
Doodley Doo
Doodley Doo

Waddely Achee
Waddeley Achee
Doodley Doo
Doodley Doo

Simplest thing
There isn’t much to it.

All you’ve got to do is
Doodley doo it.

I like the rest,
But the part I like best is,
Doodley Doodley Doo."

A Slightly Different Version with Sheet Music

Now here is the Art Kassel & Mel. Stitzel song.

Doodle-Doo-Doo A Dancing Song
Words and Music by Art Kassel & Mel. Stitzel
"[Verse 1]
I’ve just heard a melody,
That is always haunting me,
Funny little strain
Running thru my brain
It’s as sweet as can be.
It has such a pleading way.
Tho’ it’s with me night and day,
When I hear someone playing I walk right up and say:

[Verse 2]
I’ve hear all the melodies,
From the blues to rhapsodies,
They all come and go
But there one I know
That’ll linger and tease.
I’ve found all the blues a pest,
Rhapsodies to me a jest,
So if you want to please me,
Just take this one request.

[Chorus]
Please play for me
That sweet melody
Called
Doodle Doo-Doo Doodle Doo-Doo,
I like the rest
But what I like best
Is doodle doo-doo,
Doodle doo doo
Simplest thing,
There’s nothing much to it,
Don’t have to sin, just doodle doo doo it
I love it so
Wherever I go I doodle doo doo doodle doo doo doo"

You can see the chorus is almost repeated verbatim. My question is where does the rest of this camp song come from? What is Waddely-Acha and how did this become a camp song?