Regarding the aircraft name, Putnam’s has “Sea Hawk” (so does the Smithsonian “bible”) and that’s good enough for me!
I have long spelt it as one word but that doesn’t fit in with other Hawker marine types (Sea Fury, Sea Hurricane, etc.) so I did a bit of digging.
Contemporary issues of “AWAffairs” (house magazine of AWA) spell it “Sea Hawk” so I’ll change my ways!
Roger Smith.