For Norman - Deliverence goes boat to boat selling its wares, including bread.
On Jost, Christina's Bakery on the road across from the dock (next to Customs Building) makes great bread daily (during normal hours I might add).
M&M (6 PM until early am - depends when the baking they do for the restaurants and resorts is complete) on VG and Dotsy's or Pam's Kitchen (if open) on Anegada all make fresh bread.