to Don Butler's Website page from where you can see the file which is the prologue and first chapter of his book:

The book covers the period from the mid 1950's to the late 1960's.
These little collier ships travelled the coastal sea routes of UK delivering coal from the  Northern ports to the Southern ports where the coal was needed to fuel the power stations and supply the gasworks to create town gas.
This opening chapter may create your interest.  
If so, drop Don an e-mail  to receive the password needed to enable you to read the whole book.
Click anywhere on the book cover to go to the web page where you can read the opening chapters.