 In the 1931 New Year Honours, Troup was made a Companion of the Order of St Michael and St George, for public services.Troup stood unsuccessfully for the parliamentary seat of Wellington North as the Reform Party candidate in the 1931 election.In 1935, he was awarded the King George V Silver Jubilee Medal, and in the 1937 New Year Honours, he was appointed a Knight Bachelor, for public services.