Mammon And The Archer by O. Henry, 1906
The magic trick:
I guess kind of being funny?
It’s a struggle to find a magic trick here. It really is. And, look, I like O. Henry. I’m not one of these snobs who writes him off as a pop novelty writer. I just don’t happen to care for this particular story. It’s patriarchal, overly cutesy, very predictable, and more-than-a-little dated. It is a pleasant contrivance. How is that? Certainly, that’s more than I can write right now, so who am I to complain? And that’s quite a trick on Henry’s part.
The selection:
“Oh, Anthony,” sighed Aunt Ellen, “I wish you would not think so much of money. Wealth is nothing where a true affection is concerned. Love is all-powerful. If he only had spoken earlier! She could not have refused our Richard. But now I fear it is too late. He will no opportunity to address her. All your gold cannot bring happiness to your son.”
Short Story Magic Tricks 