Yes this is a wierd thread and I do consider it a bug. :)
Alderbranch is a lastname. Not a firstname. Its appears as such for the Human??!! random name generation in character creation. :)
A part from that it fits perfectly into the elven namebase given Alder is a type of tree in english and well branch is kinda selfexplainatory in english at least.... well ya all see how it works.
Alderbranch - God to the Followers of the Church of Alderbranch (and now a reported bug in Solasta! :)...)
Bow before me! Or d'ont. I'm not very picky about these sort of things.