To me it always sounds like Dylan got his singing and playing style from Jack Elliot who got his from Woody Guthrie when the latter was no longer at his best.
To me there's too much whinging doggeral in Dylan's material and none of the bitter humour you find in Woody Guthrie or Phil Ochs, a far better writer imho.
Witness: cannonballs banned...sleep in the sand...etc etc
A good example of WG's harmonic is his recording of Raincrow Bill with the master Sonny Terry