These are all figures made by King-White in Hong Kong, and which were marketed/sold most prominently through Reeves, International. They were also sold by other retailers, such as The Treasure Chest in Florida, and the American Revolution figures were available in gift shops at some national parks or historical sites, such as Valley Forge and Mount Vernon. They were also apparently sold in the USSR/Russia, because I have seen some of the Napoleonic figures in blister packs with Cyrillic writing on the cardboard backing.
King-White were made from the early Seventies up to around 1995. Their catalog included Ancients, British and French knights at Agincourt, the American Revolution, the Napoleonic Wars, the Civil War, the Boxer Rebellion, Samurai, and WWII.
These figures are the progenitors of the "Chinese style", which influenced early K&C and Frontline figures, and which was carried forward by Blue Box. And Ed Colaric's samurai range fits in very well with the KW/Reeves samurai. KW/Reeves figures can also be identified by the underside of the base, which often shows the marks of cutting the sprue gate and grinding the stub. Often there is a mark, which I have taken to be a Chinese character related to the production process.
That cannon was used in several of their catalogs, from the Revolutionary War, to the Napoleonic Wars and the Civil War.
Mounted figures came with those wooden bases as shown in your photos. They also produced a couple of color party sets, a "Spirit of '76" set, and Union and Confederate color parties, that were mounted on similar wooden bases.
Figures were available in both matte and gloss finishes.
I like King-White figures for the variety they produced, and for the style, which is relatively well-detailed compared to traditional toy soldiers, but still retains the look of a toy. I've got a good collection of these, which started with a foot figure of George Washington, that I bought on a visit to Mount Vernon years ago.
I have a catalog at home and can get the designations for each of the figures in your photos.
Prost!
Brad