I have known the Kossoy sisters since childhood and heard them do Johnson Boys many times. I have several reoordings of them doing the song. Here is their version.

Have you heard latest story
Told by young and old with joy
About the deeds of strength and courage
Told about them Johnson boys
Hopalong pretty girls don't be afraid
Hopalong pretty girls don't be afraid

Johnson boys raised in the ashes
Don't know how court a maid
Turn their backs and hide their faces
Sight of a pretty girl makes them afraid
Sight of a pretty girl makes them afraid
Sight of a pretty girl makes them afraid

They were scouts in the Rebel's army
They were known far and wide
When they saw the Yankees coming
They threw down their guns and cried
Hopalong pretty girls don't be afraid
Hopalong pretty girls don't be afraid

Johnson boys went a-hunting
Took two dogs and went astray
Tore their clothes and scratched their faces
Didn't get back till the break of day

Johnson boys went a-courting
Jackson girls so pretty and sweet
They couldn't make no conversation
Didn't know where to put their feet.
Hopalong pretty girls don't be afraid.
Hopalong pretty girls don't be afraid.

Johnson Boys went to New York
Went for to see the great White Way
Reason that they could not stay
Had no money for to pay their way
Had no money for to pay their way
Had no money for to pay their way

Johnson boys will never get married
They'll stay single all their life
They're too scared to pop the question
Ain't no woman gonna be their wife
Ain't no woman gonna be their wife
Ain't no woman gonna be their wife

Hopalong pretty girls don't be afraid.
Hopalong pretty girls don't be afraid.