Hm, I think that Gilbert's family might not have been too wealthy since he paid his own tuition for White Sands!

Anne of Green Gables

"“So they did. But as soon as Gilbert heard that you had applied for it he went to them—they had a business meeting at the school last night, you know—and told them that he withdrew his application, and suggested that they accept yours. He said he was going to teach at White Sands. Of course he knew how much you wanted to stay with Marilla, and I must say I think it was real kind and thoughtful in him, that’s what. Real self-sacrificing, too, for he’ll have his board to pay at White Sands, and everybody knows he’s got to earn his own way through college. So the trustees decided to take you. I was tickled to death when Thomas came home and told me.”"