Does the above album differentiate between silver proofs and clad proofs for the years when they offered both? I can't find any info on this from googling it. Also, does it include slots for well known Doubled dies and No FG coins? Or just the standards? Thanks.

I'm at work, so can't check my album, but I'm 99% sure they have both clad and silver proofs. There are no holes for any special Kennedys - just the standard set. Mine goes until 2007 and if I ever fill it up, it'll weigh just slightly more than my car!

You can order pages with blank slots that fit kennedies from Whitman and probably also Dansco to fit in the die variations too

I just bought a Dansco 8166(Kennedy Half $ w proofs) and have started filling it. It's sitting right in front of me now. It does indeed differentiate between silver and clad proofs. For 1976 as an example, there are a total of 5 coins listed; the 1976 business strike P mint, the 1976 business strike D mint, the 1976 S clad proof, the 1976 S 40% B/U and the 1976 40% proof. For the later years when they made both a proof and a silver proof, there are separate holes for each. It also breaks out the SMS coins from the mid to late '60s. For '65 thru '67 the US mint made "Special Mint State" Kennedy halves instead of Proofs. These coins, at least the ones in my album, are very proof like, with shiny mirror like fields. They are also 40% silver. My album doesn't have holes for the die varieties. Hope this helps.