Dick, you are quite right to say what you do.

Scargill was roundly out-manoeuvered by Thatcher, but she had the advantage of being able to change the law as she wished (which was why the sequestration of NUM funds, to the great benefit of the accountancy profession, was an exercise of lawful power) - and did - with the intention of smashing a potential opposing power - somewhat as she did with the GLC and with Thames TV.

Wikipedia states that Manton did support the strike - in terms "Manton Colliery was one of the few pits in the county to support the strike in 1984-5. David Peace's book GB84 refers to Manton, but mistakenly locates it in South Yorkshire. The colliery was on the South Yorkshire coalfield and supported the National Union of Mineworkers despite being in north Nottinghamshire and supported the strike while other pits in north Nottinghamshire did not".