I've watched the series through #5. Three more to go. Best series I've ever seen on PBS. Here's one Johnny Cash missed:

Working Man Blue Collar Blues (Larry W Jones 04/21/2019) (song #7515)

Now, it’s a job raising a family of nine
Been a hard working man on the assembly line
From nine to five I think I’ve paid my dues
I’ve got the working man blue collar blues

Got my nose to the grindstone every working day
Hard on the backbone but wife and kids need my pay
Weekends off but Monday with the crew
I’ve got the working man blue collar blues

(Instrumental)

I need a change but ain’t no other jobs around
The local grange is the only support in town
Bought one new dress and nine pairs of shoes
I’ve got the working man blue collar blues

A blue collar man, a blue collar man like me
Small town dollars but not on welfare will I be
A strong back and calloused hands to use
I’ve got the working man blue collar blues

A blue collar man, a blue collar man like me
I’ve got the working man blue collar blues