I want to know where I can purchase more. A neighbor thought he was helping by raking up the leaves where my lamb's ear was and took a lot of the plants with it. Because they were dormant. he probably thought they were dead.

Welcome Bonnie! Assuming you still have some in the ground, they will likely just fill in for you, they are pretty hardy. Keep them weeded and work in some fertilizer to give them a boost. Otherwise, any nursery should carry them.