The answer is:
Sir James Barrie
Sir James Matthew Barrie, 1st Baronet OM (1860 – 1937) is best remembered for creating Peter Pan, the boy who refused to grow up, whom he based on his friends, the Llewelyn Davies boys. He is also credited with popularising the name Wendy, which was very uncommon before he gave it to the heroine of Peter Pan.
In 1925, James Barrie donated the copyright of Peter Pan to the Great Ormond Street Hospital for sick children.