The art credits are straightforward: Sam Citron on all. He was Quality's artist of choice that year on Robin Hood Tales, and inked others into his look on Exploits of Daniel Boone.
The writers are the Blackhawk writers and, in point of fact, the remaining Quality writers. For what it's worth, the Who's Who lists John Broome, of all people, on 1956 Blackhawk backups, but I can't see him on the any of the three I haven't been able to attribute to Bernstein or Millard.
Blackhawk Backups 1956
Art by Sam Citron
|Jan/56||96||Rescue from the Sky||w: ?|
|Feb/||97||War in the Sky||w: Joe Millard|
|Mar/||98||David and Goliath in the Sky||w: Millard|
|Apr/||99||Fear and Flight||w: ?|
|May/||100||The Ghost Plane||w: Robert Bernstein|
|June/||101||The Incredible Exploits of Baron von Richtofen||w: ?|
|July/||102||Critical Target||w: Bernstein|
|Aug/||103||Fighter for Freedom||w: Bernstein|
|Oct/||105||Winged Menace||w: Bernstein|
|Nov/||106||Sam's Sixth Sense||w: Bernstein|
|Dec/||107||Red Helicopter Ambush||w: Bernstein|