Gilda - Put The Blame On Mame chords

This is Put the Blame on Mame from Gilda, by Alan Roberts and Doris Fisher

I am not a guitar grand master, but have been wanting to play this song for years 
and could never find a tab on the internet. After waiting and waiting for someone 
else to put one up, I finally figured out a basic version myself. So I don't claim 
that this is the master tab, only that this is the simple, basic chord progression. 
I hope you will build upon it and resubmit!

In the acoustic version in Gilda, it's played with capo on the 6th fret.
B7 is 021202 

Em                                
When Mrs. O'Leary's 
[ Tab from: http://www.guitaretab.com/g/gilda/276307.html ]
Am
cow kicked the lantern

B7             
in Chicago 

Em
Town

Em                                        
They say that started the 

Am
fire that 

B7
burned Chicago down

Am                               
That's the story that 

Em
went around

Em                                   
But here's the real low 

B7
down

Em   
Put the 

B7 
Blame on 

Em 
Mame 

B7 
boys

Em 
Put the 

B7 
Blame on 

Em 
Mame

And so on.....