Here's what I use - I figured it out myself, so it may not be what was intended:

[Em]Two men rode in [G]from the south, one [D]rainy autumn [Em]night
(The sky a[D]bove, the mud be[Em]low)
They walked into the [G]Deacon's Bar, they was [D]Mexican by [Em]sight
(The sky a[D]bove, the mud be[Em]low)
They [G]threw a horsehair [D]bridle down, [Am]'We trade this for [Em]whisky rounds'
The [G]Deacon [D]slammed a [C]bottle [B7]down - the [Em]two men [D]started [Em]drinkin'

(Bridges are same pattern as last 2 lines of verses.)

Peter.