[2] Richard married firstly Frances Bligh, daughter of the Reverend Thomas Bligh, by whom he had a son, Richard Moore junior of Killashee House, Naas, County Kildare;[1] and secondly in 1824 Wilhelmina Westby (died 1860), youngest daughter of William Westby of Thornhill, County Dublin and his first wife Mary Fletcher of Tottenham, by who he had a son, William Westby Moore of Hampshire, and a daughter Frances, who died unmarried in her late twenties.
[3] He was educated at Trinity College Dublin, where he took his Bachelor of Arts degree in 1803, entered the Middle Temple in 1804, was called to the Irish Bar in 1806 and became King's Counsel in 1827.
[5] Moore was Attorney-General for Ireland in Lord John Russell's ministry, holding that office from 16 July 1846 to 21 December 1847.
Ball states that Moore was universally respected for his legal ability, notwithstanding a certain modesty and diffidence about his own talents.
[5] An anonymous pamphlet from 1850, which was critical of many members of the Irish Bench, had high praise for Moore's intellect.