Airline transport operations in Sitka before the bridge was built. Passengers would ride a passenger ferry across the channel, and luggage would go across on a surplus DUKW ("Duck") vehicle. (You see these nowadays being used as "ride-the-duck" rides in cities like Seattle and San Diego, but at that time they were not certified to carry passengers.) Here is "Donald Duck", being loaded with baggage alongside 727 N798AS at Sitka Airport.