Guitar:E chord throughout, with a "Bo DIddley" beat

A Harp:5 5 4 333 5|5 5 4 333 5|5 5 4 333 4|44 4 3 222|
^ ^ ^ ^ ^ ^ ^
2 2 2 2 2|34 322 22|343 22|34 332|
^ ~
Lookin for my baby comin'down the track|3 4 5 222|
^
Ain't so sure she's comin'back|3 3 4 32 2|
^ ^
Down at the station where she said goodbye|3 4 323 222|
^
She left me crazy and I don't know why|3 "34" 2 2|

(chorus:) Chicago Line|4 44 3| (4 times)
^
|"45" "45"|"45" "45"|4 4 3 3 22|"45" "45" "45"|4 4 4 3|
~~ ~~ ^ ^ ~~ ^
Checking on the train three times a day|3 3 44 3 2|
~ ~ ^ ~
Ain't had no lovin since she went away|4 44 3 44 3 2|
^ ^ ^
She got another mule kicking in the stall|44 5 55 5 2 2|
^ ^
The woman done drove me up the wall|3 3 3 32 2| (repeat chorus)