I have lyrics to this song that my dad used to sing when I was little:

Early in the morning, fore the sun arise
Lyin on a corncob bed
Mammy roll ya over, See yer sleepy eyes
See yer little wooly head.
Mammy knows yer dreamin,dreamin all the while
Dreamin of the days gone by
Come along and cheer up, give yer Mam a buss
Blessed be the day that you was born.
Hello my baby, toopie loopie, loopie loopie
Where's yer pappy, toopie, loopie, loopie loopie
Up and down you go
Oh you fat pickininny all the way from old Virginny
Goodness how you grow.

I don't have any sheet music but I still sing that song to the melody I remember so well.