::I don't particularly like this option, but what do you think about renaming the article "St. Clair Campaign," like we did with Harmar Campaign?  The actual battle could be a subsection, and could list various names by which the battle has been called.  The rest of the article would give the context around the battle.  The wiki link St. Clair's Defeat would be a redirect, and Battle of the Wabash could be a disambiguation page listing various battles that have been called by that name.