Yes, in Zone9 probably all of yours will come back. The only ones that commonly don't come back are the red-flowering varieties, but that might not apply to 'Lady Margaret' since one of its parents it p. incarnata.
Sherry

I assume you've planted incarnata, misssherry. Those die back and regrow. Incense will do the same, but seems to have more cold tolerance than incarnata (my incarnatas are still dormant, but my Incense never died all the way back). In zone 9, caerulea will be an evergreen for you. I'm in zone 8, and it's been growing all winter.

Yes, when I say they'll come back, I mean you can expect to see them year after year. P. incarnata may not come back just where you originally planted it, but it'll be back somewhere! :)
Sherry

I have a maypop passionflower that is inside and either died or went dormant. Hopefully the latter! I've been watering it occasionally but am also waiting to see if it comes back or not. If it does I might keep it inside again, or just throw it in the ground or let it grow outside on the back of the deck.

Leo not sure they all will come back some dont for me but most do just not always were I planted them you might look for them to pop up anywhere.Not sure why some die its not the cold I think its the rain that kills some.

Angie, I think you are right, the rain kills them. Mine might be alive, but I don't see any sign of life. The roots seem pretty wet, and mushy. I will wait a little more to see how they do when the weather warms up.
I might plant new p. incense in pots this year. Have any of you done this before? Do they do well in pots, outside?