The Brians

While not the strongest XI ever seen, a team of Test players called Brian could plausibly bat in the order 24a, 27, 19, 13, 23, 18, 3 (c), 15, 22 (k), 5a, 1d. They are defined by their country and the decade in which they were most fruitful.

Comments are welcome, but please try not to spoil things for others by spelling out the answers