question: my baby shower is coming up on Oct 9th. my in laws live in Texas so they won't be coming…

question: my baby shower is coming up on Oct 9th. my in laws live in Texas so they won't be coming up for it so I haven't even mentioned it to them. my question is, do I tel them when it is and where I'm registered? like I guess I don't know the etiquette up telling people where you're registered when i know they won't be at the shower?