The Spanish Main was a series with no continuing characters in Buccaneers 19-24; I can't tell the artists on the first five stories. Corsair Queen took over the slot with 25 and lasted the three issues to the title's end.
The inking looks different enough from Winter's work at DC (or even on "Ringside Heartbreak"), that I don't think he's inking himself on Buccaneers. The Liberty Belle splash co-credited with writer Don Cameron is from her debut in Boy Commandos 1 (Win/42-43).
Winter's The Spanish Main story in Buccaneers
|Nov/50||24||Destruction or Delight||w: ? p: Chuck Winter|
Corsair Queen in Buccaneers
|Jan/51||25||The Tigress of the Seas||w: Joe Millard p: Winter|
|Mar/||26||King of Corpse Cay||w: Millard p: Winter|
|May/||27||The Castle of Greed||w: Millard p: Winter|
Winter had a run of eight stories in a row in another Quality feature around 1951; does anybody riffling through the company's titles for that year pick out that work? I'll post on it later.