While I am not a member of this kinship, I can tell you they have no way of identifying who the items are bound to. You only get a 'return to owner'. No way to see who the owner is. It might be helpful to provide them with a list of the housing items you are after.
It may also be far easier for you to reacquire them then get them back.
Crell-L85-Champion - Riddermark ; Swego-L85-Burglar ; Kotvi-L95-Runekeeper
Delego-L85 Hunter ; Stodden-L51-Captain ; Edhul-L61-Loremaster
Deglorion - SoA XP Disabler