On one of the live CD's of the CCR box JF mentions that the song is "a sad, sad song about a bad, bad photographer" although I cannot see how it relates to the lyrics as it is more suited to himself

Seekin' my fame and fortune, lookin' for a pot of gold.

Somewhere I lost connections, ran out of songs to play.

If I only had a dollar, for ev'ry song I've sung.
And ev'ry time I've had to play while people sat there drunk. [I always thought he sang while people sat their throne - equally suitable IMHO]

One line has always confused me tho:

Rode in on the greyhound, I’ll be walkin’ out if I go.

Is the greyhound a metaphor or a dub for a transport system?

Lodi:
A city of central California north of Stockton. It is a processing center in a rich farming area. Population: 51,874