Some of Sid Greene's work at Quality has been noted—the Inspector Denver story in Police 104, a romance story here and there—but his only series here that I know of is the second half of Eric Falcon's run in Buccaneers. Falcon was a soldier of fortune in Colonial times; not every adventure involved pirates.
Other artists work on the series in Buccaneers 19-23 before Greene comes aboard. He most likely inks himself in 25 and 26; I didn't even recognize the story in 24 as his until I looked over the series again before writing this post.
Eric Falcon stories drawn by Sid Greene in Buccaneers
|Nov/50||#24||An Empire of Pirates||w: ?|
|Jan/51||#25||The Surrender of Eric Falcon||w: ?|
|Mar/||#26||Bloody Fingers of Fate||w: Joe Millard|
|May/||#27||The Code of Treachery||w: ?|