Jr, from top left: a fragment of a colonial shoe buckle. Next to that, a button. to the right of that a keeper with mounting prongs broken off which goes on a small brass plate (we still cannot identify the use of that plate exactly.. but it seems to have secured a leather strap.) To the right of that, possibly the round base to a similar keeper. I don't know what the object with the hole in it was for yet.
The rest are obvious to you already; buttons, buckles, etc. (Check the pewter ones for any trace of a design. they don't show well in the scan)