Here's the chords in the original key of F. If you want to avoid all of those bar chords, you can also play the following in the C position with a capo on the 5th fret. The author of the tune actually plays it in DADGAD, tuned down a 1/2 step and with a capo on the 4th fret, though you can still play it in DADGAD without tuning everything else down a 1/2 step by just putting a capo on the 3rd fret.