Ringwald? Over John Brown's dead Body!

Searching for the hymn tune BATTLE HYMN OF THE REPUBLIC, I got this rather ridiculous result which gives the Composers as Roy Ringwald and Fred Bock. The tune authority properly if uncertainly attributes the tune to William Steffe, so why does "William Steffe" not appear in the search results Composer column, alone or alongside Ringwald and Bock (who, I assume, are there because some instances list them as arrangers)?