Dawson was one of the small number of Irish Presbyterians to sit as a Member of Parliament between 1832 and 1868. A young military officer from a landed and titled family which had long been involved in the politics of his native Monaghan, his parliamentary career foundered after he proved unable to square his commitment to the Liberal party with his opposition to the disestablishment of the Irish Church.
Dawson was the scion of a family that originated in Yorkshire and had settled in Ireland in the early seventeenth century.
Dawson’s father, Sir Richard Dawson (1817-97), was a Presbyterian.
Dawson joined the Coldstream Guards, of which regiment his aforementioned uncle was a lieutenant-colonel, in December 1859.
After celebrating his coming of age at Dartrey in September 1863, and being newly promoted to the rank of captain, Dawson was brought forward for County Monaghan at the 1865 general election.
At Westminster Dawson voted consistently with the Liberals during his first year in Parliament. It was said that he ‘was never absent from any great division … and never voted except on the same lobby with Mr. Gladstone’,
In contrast with his earlier loyalty to the Liberals, Dawson broke with his party over the question of the Irish Church, dividing against Sir John Gray’s motion for a committee of the House to consider the church’s temporalities and privileges, 7 May 1867.
Despite his committed defence of Protestant institutions, Dawson’s opposition to Gladstone’s policy on the Irish Church did not win over ‘a single friend’ among Monaghan’s Conservative proprietors,
Dawson died at Dartrey in June 1920, when a part of the family estate, including Dartrey House, was vested in his eldest daughter, Lady Edith Dawson (1883-1974).
