GUEST,Anon2,

I believe that the source for the large family of "Stella Ella Ola"/ "Quack Dilly Oso" rhymes (and other titles) is the chorus to the 1945 American novelty song "Chickery Chick" plus a great deal of folk processing (folk etymology; oral tradition).

Here's that song's chorus:

"Chickery-chick, cha-la, cha-la
Check-a-la romey in a bananika
Bollika, wollika, can't you see
Chickery chick is me?"

-snip-
"Chickery Chick" appears to me to be a re-working of the nonsense word filled choruses the 19th century or earlier racist (anti-Chinese) ridicule song "Chingery Chang" (also known as "Once In China There Lived A Great Man".) So "Chingery Chan" can also be said to be a source of the non-racist, nonsense word filled "Stella Ella Ola"/ "Quack Dilly Oso" rhymes.

Here's the chorus to one of the versions of "Chingery Chan":
"Chingery-rico-rico-day,
Ekel-tekel. Happy man!
Kuan-a-desco-canty-o,
Gallopy-wallopy-china-go." [1868]

Visit my Pancocojams blog for a two part series that I published about "Once In China There Lived A Great Man" and "Stella Ella Ola" rhymes.

Thanks to the Mudcat members and guests who I quoted in that pancocojams series. I was I motivated to work on and publish as a result of the interest that I've had for a long time in this subject and your comment GUEST,Anon2,

Best wishes,

Azizi Powell