Did a milne have any children?

Please clarify who you mean by "a Milne." There are many people with the last name Milne.

For example, are you referring to:

* A.A. Milne, the author of Winnie-the-Pooh? He had one son, Christopher Robin Milne, who inspired the character of Christopher Robin in the books.

* Alan Milne, the British actor? He has a daughter, Millie Milne.

Please provide more context so I can give you a more accurate answer.