For the larger bolt holes, I used Smith's Fill-It, a epoxy based wood filler that will not shrink and dries overnight.
After the wood filler dried overnight, I went over with my 5" orbital sander. Then back out for two coats of Smith's CPES. Now it looks like a spotted trout, as said by someone else.
If the mild weather hold a few more days, I may be able to lay a few coats of the Interlux 2000E primer before winter sets in. It is workable down to 41ºF (5ºC). Painting with the Copper Bronze paint must wait until spring.