After he was demobbed in 1946, he became a farmer at Kirtlebridge near Lockerbie, although he also had other business interests. He remained a member of the Royal Auxiliary Air Force from 1947 to 1954. He was later an honorary Air Commodore from 1982 to 2000, and its honorary Inspector General from 1990 to 2000. Monro married twice. He married Anne Welch in 1949. Their two sons joined the British Army. Seymour retired as a major-general; Hughie is a retired brigadier. Monro's first wife died in 1994; later that year, he married a second time, to Doris Kaestner, a friend of his first wife. Monro's grandson, Ander Monro, has played for the Canada national rugby union team.
Political career
Monro was elected as a Dumfries County Councillor from 1952, where he served until 1967. He was chairman and vice-president of the Dumfries Unionist Party and was elected MP for Dumfries in the 1964 general election, retaining his seat until he retired at the 1997 general election. He became a Conservative whip in 1968, and was a Parliamentary Under Secretary of State at the Scottish Office between 28 July 1971 and 28 February 1974. He voted against his party on Scottish devolution, announcing his support for a Scottish Assembly in 1974. After the Conservatives lost the February 1974 general election, he was an opposition spokesman, initially on Scottish affairs and then on sport, until 1979. After the 1979 general election, he was appointed as Margaret Thatcher's first Minister for Sport, as Parliamentary Under Secretary of State at the Department of the Environment under Michael Heseltine. He also had responsibility for some environmental issues, and was involved in strengthening the provisions of the Wildlife and Countryside Act 1981. Monro came under some criticism for opposing the visit of a South African Barbarians rugby team to the UK and a return visit by the British Lions rugby team the next year. He was dropped from the Government in 1981 in the wake of Mrs Thatcher's proposal that the British team pull out of the Moscow Olympics, receiving a consolatory knighthood that year. In 1986, he suggested that the government bill the Kremlin in the amount of £1 million and provide the amount to Scottish farmers in compensation for losses to sheep herds caused by the Chernobyl nuclear disaster. In 1988, a bomb exploded on Pan Am Flight 103, which crashed at Lockerbie, near his home. He was closely involved in the aftermath as the local constituency MP, and went out to Lockerbie with two other MP's. He was hailed by politicians of all political stripes for his compassion and caring; Scottish Labour MP Brian Wilson praised him as "a man who is truly a part of the community that he represents". He returned to the Scottish Office on 9 April 1992, but he was sacked from this position on 5 July 1995. He became a member of the Privy Council in 1995, and following his retirement as an MP, was made a life peer as Baron Monro of Langholm, of Westerkirk in Dumfries and Galloway on 6 November 1997. The number of Conservative MPs from Scotland declined from 24 when he was first elected an MP in 1964 to nil after the 1997 general election. A One Nation Conservative, he occasionally rebelled against the official party line, opposing the closing of British Steel Corporation's Ravenscraig steelworks, for example. One of his Labour Party opponents, Norman Hogg, dubbed him "the last of the decent Tories".