Professor Rowan

Okay, so I need some good first names for the Sinnoh Pokémon Professor, Professor Rowan.

So far, I've gotten these names:

Benjamin

Oliver

John

Windle

Grabriel

Jeremiah

Markus/ Mark

Wolf

Ahhh! There are too many good names! Can you guys all help please with picking the best name that would fit Rowan?