So I decided to try and reintroduce them to the community tank. They both lived there until a couple of years ago, when they were mating so often that I needed to remove them to their own tank to protect the fry from predators.
Stevie was accepted immediately. Female angelfish are usually accepted without a problem, unless they go after a male who has already been claimed by another female.
Lindsay did not fare well at all. The other males had him cornered underneath a decoration and had I not been observing and ready to intercept, I think he would have been chewed pretty badly. Male angelfish are much more territorial and when a new male attempts to join the school, they can be vicious.
So rather than place Lindsay in a tank completely by himself, I moved both Stevie and Lindsay. Now I have plans to redecorate their tank. If they aren't going to lay more eggs, then I can add more decorations. However, I chose a castle with an eye toward the vertical lines, because angelfish lay their eggs on vertical surfaces. Who knows? The new digs might set them on a second honeymoon.
I'll post pictures of the new tank once all the new decorations are in!