Freddie Hellerman did not write this song. He probably got it from Erik Darling who recorded it and sung it regularly.

Woody Knows Nothin' has many variants.

One is the Burl Ives offering,
"Saturday night and Sunday too, true love on my mind.
Monday morning and the rest of the week,
White man got me gwine."

"Jaybird pull a four horse plow.
Sparrow why can't you?
'Cause my legs is little and long
and they might break clean in two."

Frank