Forum:President Names

Why do we have articles of former presidents with either abbreviations or just last names? For example, there isn't an Abraham Lincoln, there's only a Lincoln page. Also we only have LBJ, not Lydon B. Johnson. I definately think that this should be changed, but I wanted to check and see if there was a reason for this first. - Tyminator1 (Talk) 01:35, November 16, 2009 (UTC)