Welcome to Coin Talk. IMO none of the coins you posted would even grade MS 60. All appear to be circulated. I'd suggest you check out this site to see what MS graded coins look like: https://www.pcgs.com/grades. If you have a smartphone you can download "PCGS Photograde" which is a pretty decent grading guide. Don't see any photos of a Kennedy half dollar. You have a 1934 Walking Liberty half posted and some Lincoln cents.