I may have missed it, but none of the posts on this thread seem to have considered exactly where or what "Mille" is.
Mille Creek is a short creek and associated valley, which flows into the upper Manilla River right at the town of Barraba. It isn't really all those close to Narrabri, and rather inaccessible from there because of the mountains in the way, the natural line of communication is south to Tamworth and North to Bingara.
One of the first selectors in Barraba was Edward Taylor, and the location of his selection is in the North Barraba lands parish close to Mille Creek. Between the creek and the asbestos mine.
This article on Trove might potentially be of interest
http://trove.nla.gov.au/ndp/del/article/128588622The other tern left unstoned in this thread, is the identity of the marriage witnesses Andrew Cochrane and Peter Dodd. Often they are just cronies of the clergyman, but also often, they are brother-in-laws or other relatives.
Andrew T Cochrane is an interesting one, as he appears to have had a child with one woman at Coonabarabran in 1879 and a child with a different woman at Coonamble in 1880, and no marriage to be seen. There's about five different spellings of Cochrane, mind you.