Oh, asleep at the switch, I coulda got the money ones...except maybe those last few on the big bills I never saw in my life...
For the Veep-less, I should know this and will probably kick myself when the results are shown...but I am dead in the head today...has to be non-modern era though, especially early on when succession issues/procedures weren't as nailed down or timely...
Would have to involve those who died in office - Harrison, Taylor, Lincoln, Garfield, McKinley, FDR & Kennedy. But IIRC I don't think any of them were ever without a Veep!
So, it has to be among Veeps who died in office! Crap, that makes it harder. I can only think of Burr and Calhoun. Hey, I got this far, y'all pick it up from here!!!