#19 is Missouri Star, made with Marti Michell templates (Set B)
#20 is New England, rotary cut using regular ruler and paper templates from EQ7.
#21 is Underground Railroad (variation), made with Set B, Marti Michell templates
#22 is Blockade, again made with Set B
#23 is a very simple version of Illinois Roads. I like the more complicated version better (think nine patch with five of these made much smaller!), but opted to go with Barbara's version. Rotary cut, strip pieced, very easy!