[1] Mason was admitted at Magdalen College, Oxford, on 29 November 1594, matriculated on 7 January 1595.
On 13 April 1621 his widow, Helen Mason, obtained a licence for twenty-one years to reprint his version of Foxe's Book of Martyrs for the benefit of herself and her children.
[1][2] Its dedications to George Abbot and Sir Edward Coke probably proved their value in getting this protection, for a book that reflected typical political prejudices of the time after the Gunpowder Plot.
[3] About ten years later Helen Mason's attempt to stretch the monopoly to cover a new abridgement of Foxe's work ran into a legal rebuff.
Richard Dummer married Thomas and Helen's daughter (Mary) Jane.