You can see all of the figures in the Museum collection on the W. Britain homepage, including anything that has been retired. If something has been retired it is often replaced with an improved version... We have done that with Lincoln, Washington, Jefferson, Hamilton and Lafayette to date.
At one time this heading also included the U.S. Marines, however I could see that we needed to have a separate range for Marines of the World so I created Jack Tars & Leathernecks and those are now separate. The Museum range is growing but is relatively new so most of the figures can still be purchased from any of our retailers.
There are a fair number of diverse subjects that will be added that are well into development at this time too. Many of the subjects overlap with current collections such as WWI or American Civil War, but we see that many subjects have interest beyond the core collectors market so they become part of the Museum Collection rather than being lost in a large range.
I hope this helps,
Ken