He talked about this on another forum.
He should research what varieties have Hanna as an ancestor. IIRC there are some with similar names such as Hannka, or something like that.
Chevalier is grown on limited acreage, as the yield is low.
He should see if Crisp would make some low color malt out of it.
Ron Pattinson is presenting at HomebrewCon. Conversations with him are memorable!