Dear bowdoin514911 7b SC,
Yes, camellia seedlings can be dug up and relocated. I would wait until they are dormant in late fall or winter to transplant them. That will allow the camellias time to re-establish their root systems and, thus, lessen transplant shock. Camellia seedlings will have a tap root, which you should prune to encourage the development of their root system.

What a treat for you! Camellia seedlings are fun and never a disappointment though the offspring won't be identical to the parent plant. The DNA of your many Camellias may all come into expression in the seedlings, considering how bees and other pollinating insects like the flowers!