Jo-Ann--I know that is what we have done in the past (to only send the list to sisters who have been willing to share their own addresses). I know originally we did it that way to safeguard our friends' personal info. We figured that if you were willing to share your addy (for purposes of card showers etc) then the group would share with you.
A gentle reminder that if you want to include your birthday, use the MONTH and DAY only, NOT the year. :)
Thanks again for doing this!
Hugs, Michele