President George Herbert Walker Bush and President George Walker Bush are not properly termed Senior and Junior. Their names are not identical. Knock it off.
I prefer Bush the Elder and Bush the [del]Psycho[/del] Younger myself, but - whatever trips your trigger. Just, please, not the blatantly wrong Senior and Junior. Thanks so much.
Also, could someone please explain to me what the deal is with airplane peanuts?
You know this is only going to make people use it more often, don’t you? It’s a useful short-hand, which is why I use it. I know they’re not Sr/Jr, but all I’m trying to do is indicate which one I’m talking about, if the context makes it unclear. Language is like that, you know-- whatever works gets used.
You could always use George the First and George the Second.
I’m that influential? 
Part of it’s personal. I got a different middle name from my dad specifically so I would not grow up being called Junior. It still happened, even though we have different nicknames for Francis. It grates; what can I say?
or 43 and 41
Ok, I will agree to use Bush the Elder and Bush the Psycho. I can live with this.
How about George the Lesser and George the Really Lesser?
So you’re saying that neither of them are the answer to life, the universe and everything?
Bill Clinton! (Where’s the smiley of the Home Alone kid with his hands pressed to his cheeks, all astonished?)
The only way that it would be “blatantly wrong” would be in the construction, George Bush, Sr. and George Bush, Jr.
Using the casual references “senior” and “junior” do not violate the strict rules of genealogical nomenclature and would appear to mark you as the worst sort of pedant–a pedant in error.
Lo. How the mighty are fallen!
It would look just like Munch’s “The Scream”, wouldn’t it? Yep, that would be a good one.
Mod fight! Mod fight!
Can’t we call them Number 1 and Number 2. As in, “I gotta go Number 2”?
I like “Papa Bush” and “Baby Bush”, but that’s probably unfair (either to the Bush’s or the Duvalier’s, you decide)
Piffle, sir, piffle.
They are capitalizing them!
And just what do you have against capitalizing them? How do you expect then to survive in a free market without capital?
(You got a citation that a reference to “Smith Senior” violates some arcane genealogical ordinance, statute, or bylaw?)
George the Least?
Or Bush 41 and George the Lesses.
My post is my cite.