This is the chord documented by the Dead. Spence however, hears a change in later performances to a Bm. I agree and advise you to try it.
G Well the first days are the hardest days, C G Don't you worry any more, G 'Cause when life looks like Easy Street, C G There is danger at your door. Am Em Think this through with me, C D Let me know your mind, C D G Am G Wo, oh, what I want to know, D G Is are you kind? It's a buck dancer's choice my friend; Better take my advice. You know all the rules by now And the fire from the ice. Will you come with me? Won't you come with me? Wo, oh, what I want to know, Will you come with me? G C Goddamn, well I declare, Am G D Have you seen the like? C Their walls are built of cannonballs, G D C D Their motto is "Don't tread on me". G C Am G D Come hear Uncle John's Band playing to the tide, C Come with me, or go alone, G D C D He's come to take his children home. G D C D G D C D It's the same story the crow told me; It's the only one he knows. Like the morning sun you come And like the wind you go. Ain't no time to hate, Barely time to wait, Wo, oh, what I want to know, Where does the time go? I live in a silver mine And I call it Beggar's Tomb; I got me a violin And I beg you call the tune, Anybody's choice, I can hear your voice. Wo, oh, what I want to know, How does the song go? G C Am G D Come hear Uncle John's Band by the riverside, C Got some things to talk about, G D C D Here beside the rising tide. G C Am G D Come hear Uncle John's Band playing to the tide, C Come on along, or go alone, G D C D He's come to take his children home. Outro G C G Wo, oh, what I want to know, how does the song go.