Thanks!
I just realized (or maybe relearned) that the IDE hint links to the ancestor class implementing the method not the class itself. I've been away from Lazarus/Delphi for about 12 years, so it's hard to know what sure what I forgot and what I never knew
Anyhow, my renewed interest in Lazarus is due to Monodevelp's questionable prospects, and it's pleasing to see how active the Lazarus Community is.