Possible Milligan First Names

This is a list for potential first names for a character from the Mysterious Benedict Society book series. In the books, he had been captured and had his memory taken away by the enemy, and from then on went by Milligan, since it was the only word he could remember. Partway through the series, he regains his memory, and even though it says that he got all of his memories back, he continued to go by Milligan, and his real name is never mentioned. You know his last name by default (long story), but his first name remains open to speculation ;). Here are some names that I thought might fit him. By the way, from his description in the books, I imagine him looking exactly like Robert Redford in The Natural. ;)