Answer:
If I were to give O. Henry's "One Thousand Dollars" an alternate ending, I would write it as follows:
After giving the thousand dollars to his niece, Gillian, the lawyer, Young, receives a letter from his long-lost love, Agatha, who had left him many years ago. In the letter, Agatha explains that she had left him because she was pregnant with his child and had not known how to tell him. She now reveals that their child is a son who is a successful businessman in New York and has been looking for his father for years.
Young is shocked and overjoyed to learn that he has a son and immediately sets out to find him. After a long search, he finally locates his son and they are reunited. Young's son is thrilled to meet his father and they spend several days bonding and catching up on lost time.
During their time together, Young's son learns about his father's generosity in giving away the thousand dollars to his niece. He is touched by his father's kindness and decides to give him a gift in return. He hands Young a check for a million dollars, explaining that he had always wanted to find his father and thank him for everything he had done for him.
Young is overwhelmed and grateful for his son's gift. He realizes that the thousand dollars he had given to his niece had led to this incredible reunion with his son. He feels that his life has come full circle and that he has been blessed with a second chance to be with his family.
In conclusion, this alternate ending to "One Thousand Dollars" shows the power of generosity and how it can lead to unexpected and wonderful outcomes. It also highlights the importance of family and the joy that can come from being reunited with loved ones.