But Can You Name Them…

I thought I was pretty good with naming (most) of the U.S. presidents, until I worked the New York Times Crossword puzzle today (in syndication). I figured out the theme. I got all five of the theme answers. But I still had a bit of trouble at first figuring out which presidents were being referred to. I almost had to whip out my copy of The Buck Stops Here (http://bit.ly/diNZNe) to refresh my memory of the presidents. How fast can you guess which presidents these are?

sac/air/eat/ail/lore

yule/hiss/say/ask/rent

dumbest/chef/hers/sinn

junk/wins/see/add/hums

hairiest/room/hawn

Answers in comments section!