Ranger1 mentioned this song by Fred Gosbee. It's on his record "The Ballad of Cappy John" by Castlebay

CLAMDIGGER © Fred Gosbee
   
You think that diggers have a life of ease
You think they come and go just as they please
In the air and in the sun
A peck or two and then they're done

Ho clams! You need 'em for chowder
Ho clams! You eat 'em with fries
Ho clams! I'll be a digger,
I'll be a digger until the day I die

See that old clamdigger in the mud
I guess that digging just gets in your blood
As long as he has kids to feed
His boots and hoe are all he needs

A digger sets his timepiece by the tide
Goes down to the shore when flats are wide
Bends his back and pulls his hoe
Digs as fast as he can go

In wintertime it's cold but still we go
Out on the flats although it's ten below
That onshore breeze is awful chill
If diggin' don't get you the frostbite will

In summertime the diggin' days are long
You get two tides a day if you are strong
Then when you think you're getting ahead
The state man says the tide is red

Red tide means that you can't sell your clams
Means you have to scuttle all your plans
Feed the kids; put off the rent
You have to scrape for every cent

In a restaurant or in your home
Now that you have listened to my song
When you sit and eat your clams
Just remember who I am