I notice in the reference or stickeys above. You have a couple decent reference sections for the 1880's brown duck fatigues. As well as a sourced amount of reference for Spanish American War uniforms. Just surprised there isn't a similar reference regarding the blue suit and the different variations from the end of the CW (1866-1872ish), then 1873 - 1884-5, followed by the 1880's thru the Span Am period. Yes the Rutledge-McChristian-Langellier books cover this.
For some that have good complete kits. This would be helpful. In addition to maybe enticing some CW reenactors to step out of their comfort zone and come shoot. It might give some CAS shooters a bit of incentive to look at military impressions? Blending some military and civilian clothing could make for some interesting field or scout impressions. I'm bored, tired of being cooped up and just thought this might get some information flowing.
Side note: There is a good source reference for vendors in the GAF Regs section.