A few people hand delivered us gifts recently. I do not have their addresses, I don't know where they live, nor can I find them in the local phone book or any online search engines (zabasearch.com, etc).
I can EMAIL them directly asking for their address, but then do your or do you not mention the gift in that email is my question?
Like, "Oh we loved your gift! Thank you so much; that was above and beyond! Can I you send me your address? I'd like to send you a thank you card."
That just seems weird to me 1) thanking them via email "first," then 2) thanking them again via snailmail. Then it seems odd to not mention the gift but randomly ask for their address and they may wonder why.
What does etiquette say?