Missed that last line break. But I do have the hang of it. This lays out the chords right nicely.
Am E G
Once I built a tower, up to the sun
Dm Am
Bricks & mortar & lime
Dm Am Fm
Once I built a tower, now it's done
E Am
Brother can you spare me a dime?
Am Dm Am
(bridge) Once in khaki suits, gee we looked swell
E
Full of that Yankee-Doodly-duni
Dm Am Fm
Half a million boots went slogging through Hell
E Am
Am E G
Once I built a tower, up to the sun
Dm Am
Bricks & mortar & lime
Dm Am Fm
Once I built a tower, now it's done
E Am
Brother can you spare me a dime?
Am Dm Am
(bridge) Once in khaki suits, gee we looked swell
E
Full of that Yankee-Doodly-dum
Dm Am Fm
Half a million boots went slogging through Hell
E Am
And I was the kid with the drum
Hope this helps with the chords.
Roger in Baltimore