Meow means thank you for the safe space and will you be feeding me ?

Quincy needs the best clean kitty litter and wet food....tuna, lots of gravy salmon or fish with fresh water next to her food where she hides....rattling a bag of kitten food may remind her of food routines where she once lived....say her name often in different ways until she sets her own routine with you....catnip in with a cup of dry food can also satisfy her memories before her fearsome loss of her first lady

Keep the house quiet and pretty much just let her come to you. It is a good sign that she came out and meowed. She probably already knows you are the keeper of food.

Thank you for adopting her. Sorry to hear about the declawing. Places are starting to outlaw it.

Aw poor kitty. Give her time.

Love cats
...every cat is worth our love and learning from them

Sometimes a little catnip works wonders? But I would start with a toy or food treat and not too much pressure - I bet she'll appreciate the quiet!

The declawing may lead to arthritis years down the line - the finer the litter the easier on her paws (now). I wouldn't use wood pellets for a cat that was declawed.
I'm not sure if anything you do now could help prevent the arthritis later - but declawing is an amputation of the last joint of their toes. It's easy to see why they could have trouble when older.

Quincy? If your name is "Sam" don't change it.

I'd try to lure her out with string. Or you may get another cat to lure he4r out.

Sitting on the floor speaking softly and reassuringly sometimes helps. You don't have to speak to her necessarily, read aloud if you haven't anything to say. Have a couple of cat treats in case she comes to you. Don't try and lure her, just sit quietly.

Sadly, be prepared for problems she might have later from being declawed. It's a barbaric practice