"That girl that’s coming told me she was used to a house where they had a furnace," Zeena persisted with the same monotonous mildness.
All the dwellers in Starkfield, as in more notable communities, had had troubles enough of their own to make them comparatively indifferent to those of their neighbours; and though all conceded that Ethan Frome’s had been beyond the common measure, no one gave me an explanation of the look in his face which, as I persisted in thinking, neither poverty nor physical suffering could have put there.
There are no more uses of "persist" in the book.
Show samples from other sources
The child persisted in asking questions despite my obvious desire to be left alone.
We expect the conditions to persist into next year.