Her brother was of the frontier and he would understand.
"My book is on some kind of frontier between the two."
People who "come into the country" want to find a sense of the frontier.
On this side of the frontier, there are few people.
I knew we had reached the edge of the frontier.
The area was settled before 1820 near the community of Frontier.
Born of the frontier, America has always been an armed society.
"The whole race has a bit of the frontier about it," he said.
So much for the romance of the frontier, he had thought at the time.
For the moment, though, it is not clear who will meet the refugees on the other side of the frontier.