Hi TxGrams,
You and your husband did a great thing to adopt Georgia. It sounds as though she didn't have much of socialization when she lived with her former owner. Although she didn't have much of freedom, I am sure she was very much attached to her former owner. It is sad that she passed away...
And now, Georgia has found someone she loves so much - YOU! You are the one she wants to protect from anybody who gets close to you. I think her growling is a sign of resource guarding.
I would suggest this: When she starts growling, just take off. I would not suggest this if your dog was aggressive and if there was a concern that she might snap, nip, or bite people or dogs but you said she is not vicious. When someone, even your husband, gets closer to you and Georgia, and she starts growling, just leave her and move to another room. She would stop growling at your husband and start following you, because her resource to guard has disappeared so there is nothing for her to protect. When she follows you to another room, YOU will go back to your husband while she follows. This makes the situation a little different. YOU are the one who gets close to your husband, so Georgia cannot guard YOU, her precious resource in this situation.
Repeat this every time she growls. Pretty soon, she will stop growling, I hope. Good luck
