Slate
A type of fine-grained, dark gray metamorphic rock that splits into smooth layers.
Clay
Earth or soil; specifically, a type of fine-grained natural soil used in pottery.
Reed
Red-haired or red-complexioned
Kane
Male form of 'Cain', meaning 'spear' or 'warrior'; in Hawaiian, 'Kane' means 'man' or 'husband'; in Japanese, it can mean 'gold' or 'metal'.
Rowan
Red-haired or little red one
Wilder
One who lives in the wild or wilderness