This sixties' teenager came into folk music via (among a lot of others) Bob Dylan, IMHO:

He spoke for a generation. As easy it was to tell black from white, it was all that easy to tell wrong from right; that's how teenagers feel about moral issues. "Lonesome Death of Hattie Caroll", "Pawn in the Game", "Times They are a'Changing" -- we grieved for the wrongs of the world. And now this 50+ middle-aged cynic, looking back, feels perhaps that, along with teenage certainties, he's lost more than his hair. I owe Bob Dylan an awful lot.

Having said that, I've never listened to anything later than "Bringing it all back home", and don't intend to. (I've never heard of Hanson, either.) But the first album had wonderful, driving, blues which still bewitch me; the next three I don't listen to but remember with great affection. I've moved on, and so has Bob, but in different directions...