Player Child Objects Not Spawned

When an in-game player with child objects is spawned, the child objects do not appear to have their NetworkIdentity registered. Is there a way to do this without spawning each child object and parenting them to the player?

I came across this situation when trying to use Networking code in one of my player's child objects, and the Networking code can't be used on a script in an unspawned object.

Thanks for any help!