Who are the most forgettable presidential/vice presidential candidates?

[Property Representative of the Harold Holt Swimming Centre]

Presumably we are talking about major party candidates only, and maybe the impactful third-party candidates like La Follette, Perot, Weaver etc. For this, I'm imagining myself as an alien nerd who has just arrived on Earth and spends the next six months researching this topic, and is then thoroughly grilled on it. Who would they be most likely to forget?

Well, all of the females can be ruled out as there has been so few of them and thus are quite novel. Similarly those who took part in the most interesting elections can be too, thus one can exclude the running mates of Tilden and Hayes eveb though I can't name them without Googling. Also, those who went onto bigger things (Earl Warren might be a half-decent shout if not for becoming one of the more consequential CJs) can't count either.

Kefauver, Kemp and Miller seem like the best bets from the post-WWII era. Shriver would be helped by the researcher in question being fascinated/baffled by the whole fiasco involving Eagleton in that election, and Bentsen had the legendary quip to Dan Quayle.

The overall answer, though, would probably be someone (well, one of the VP candidates) from the 1880-1892 period. Some of those elections were kind of interesting but it was perhaps the dullest period, and it became sandwiched in between the Civil War/Reconstruction period and the dawn of the American century (which the WJB/McKinley battle was the starting gun for).