Wayne Thomas, general secretary of the National Union of Mineworkers (NUM) in Wales, did not travel to London, says he still feels anger towards Baroness Thatcher, but has said that a debate on her policies should wait until after she has been laid to rest.
As a 22-year-old miner based in the Swansea Valley during 1984, his experiences of a year on strike have left an indelible mark.
Mr Thomas believes that the only fitting epitaph for Baroness Thatcher's grave would be "May God Forgive Her".
My view on the matter is quite clear - I do think that we should show respect for the family of Mrs Thatcher. They have lost a loved one.
There are grieving family members and we should respect that.
I think it has reopened the debate on the rights and wrongs of what she did. But that is a debate for after she has been buried.
I do think that people are trying to airbrush away how horrendous her policies actually were.
ITV News consults the historians and opinion-formers who will shape how future generations see Margaret Thatcher.
The National Secretary of the National Union of Mineworks, Chris Kitchen, shares his thoughts of Margaret Thatcher's legacy.
Margaret Thatcher attended a Grantham grammar school, it is said the school inspired her career.