"It's All Over Now, Baby Blue"

When I listened to The Byrds Play Dylan a second time recently, I noticed some small significance in a line in "It's All Over Now, Baby Blue" (the first version, recorded in June 1965).  "All your seasick sailors, they are goin' home" contains a pleonasm, and while this redundant "they" isn't necessary grammatically, it does provide a sense of amount (for "all").

I referenced the version on Ballad of Easy Rider and discovered that the line is slightly different there:  "All your seasick sailors, they are rowin' home."