[2] His brother Peter McIntyre was the agent in New South Wales for the prominent colonist Thomas Potter MacQueen, and in 1825 he established the large Segenhoe property on MacQueen's behalf and also occupied Blairmore for himself, on the land of the Wanaruah and Geawegal people, near what is now Aberdeen.
[5][2] In 1834 he established another station Dalkeith at what is now Cassilis,[6] on the land of the Wiradjuri people.
In November 1833 a shepherd that McIntyre employed, variously referred to as Edward Hills, Edward Giles or William Gills, hit him in the back of the head with a piece of iron.
The shepherd was convicted of attempted murder,[7] sentenced to death,[8] and was hanged in March 1834.
[9] In 1843 McIntyre stood as a candidate for the Counties of Hunter, Brisbane and Bligh, but was unsuccessful.