Please clarify which Milne you are referring to. There are many people named Milne, so providing more context would help me identify the right person and their school.
For example, are you interested in:
* A. A. Milne, the author of Winnie-the-Pooh?
* Christopher Milne, the son of A. A. Milne?
* Another person named Milne?
Once you provide more details, I can help you find the answer!