Who wrote this song? Shaffer someone?

[Optimist Prime]

All My Exes Live in Texas
[CHORUS]
All my ex's live in Texas,
and Texas is a place I'd dearly love to be.
But all my ex's live in Texas,
that's why I hang my hat in Tennessee.
Rosanna's down in Texarkana; wanted me to push her broom.
And sweet Ilene's in Abilene; she thought I hung the moon.
And Allison in Galveston, somehow lost her sanity.
And Dimples who now lives in Temple's got the law lookin' for me. [to chorus]
I remember that old Brazos River where I learned to swim,
But it brings to mind another time where I wore my welcome thin.
By transcendental meditation, I go there each night.
But I always coem back to myself
long before daylight.
[to chorus]

Some folks think I hide; It's been rumored that I died,
but I'm alive and well in Tennessee.