He may briefly have considered joining his father in his business as a merchant, but quickly resolved on a legal career instead.
He was a staunch supporter of the House of Hanover, despite marrying into the Ludlow family, many of whom, including his own wife Elizabeth, were described as "ferocious Tories".
The last promotion was much against the wishes of the influential Archbishop of Armagh, Hugh Boulter, who interfered regularly in judicial appointments, invariably preferred English-born officials to Irish, and disliked Rogerson personally.
An alternative explanation was that no English judge would take the position, so that the Archbishop was grudgingly forced to accept Rogerson's elevation to the Bench.
He married Elizabeth, daughter of Stephen Ludlow of Ardsallagh, County Meath (died 1721) MP for Dunleer, and his wife Alice Lachard of Wales, and had at least five children: He died in August 1741 at his house in Henry Street, of the infectious fever which was rampant that year, the second year of the Great Irish Famine of 1740-41, which he apparently caught while travelling on the Ulster circuit, and which also claimed the life of John Wainwright, a popular and respected Baron of the Court of Exchequer (Ireland).