The son of a Tipperary banker, landowner and magistrate, Scully was the nephew of Denys Scully, a well-known author and Catholic activist. His cousins, Vincent Scully, Robert Keating, John Sadleir and James Sadleir, all sat as MPs. Having been educated in England, he was called to the bar in 1841 but did not practise.
One of the more assiduous attenders amongst Irish MPs (he claimed to have divided 436 times in his first four sessions), he first spoke in the House in December 1847 on the difficulties of law enforcement in Ireland, identifying ‘the ill-regulated relations between landlord and tenant, … and the absence of productive or profitable labour’, as the main cause of Irish crime. The following year he supported William Sharman Crawford’s efforts to amend landlord-tenant relations.
By this time Scully was in the vanguard of the Irish Brigade, which had formed around John Sadleir’s family group in the Commons to campaign against the ecclesiastical titles bill.
Scully, as might be expected, was dedicated to the defence of the Maynooth grant.
Having pointed to ‘the absolute necessity of passing a Registration Bill for Ireland’ in 1850, Scully supported the Irish franchise bill, but argued for a £5 franchise for borough voters, warning that the measure ‘would not give satisfaction to the people’. He voted for the ballot in 1853 and also supported customs reform.
Scully further estranged himself from the independent Irish opposition when he voted with government against a motion for a committee to consider Irish taxation, and, having informed his constituents that he intended to give the coalition government ‘a fair chance’, he was interviewed by the prime minister, Lord Aberdeen, 2 Nov. 1853.
In January 1856, Scully married the daughter of a wealthy London businessman and patron of the Catholic church, the ceremony being performed by the Archbishop of Westminster, Cardinal Wiseman. He was, however, a director and shareholder of the ill-fated Tipperary Joint-Stock Bank (his father had been its chairman until his death in 1846) and was therefore implicated in the financial scandal which followed John Sadleir’s suicide that February.
