Hello,
I thought I'd share some pictures with you I found in an online archive with lots of pre-1923 photos and drawings (much material on American Civil War, 1898 US-Spanish War etc.).
You will have to copy and paste the URLs. Remember to copy the entire URL, otherwise it can't work.
More to come soon. Regards,
Pat
http://digital.nypl.org/mmpco/searchresultsK.cfm?&trg=2&image_id=806141&titl
e=Farewell%20parade%20of%20U%2ES%2E%20troops%2C%201918%2E&strucID=448527&dst
art=26&keyword=World%20War&NUM=25
US troops farewell parade (in Montana hats) 1918
http://digital.nypl.org/mmpco/searchresultsK.cfm?&trg=2&image_id=806152&titl
e=Farewell%20parade%20%2D%2D%2027th%20division%20%2C%20Aug%2E%2030%2C%201917
%2C%20New%20York%20City%2E&strucID=448503&dstart=26&keyword=1917&NUM=25
US 27th Inf Div on farewell parade (in Montana hats) August 1917
http://digital.nypl.org/mmpco/searchresultsK.cfm?&trg=2&image_id=814158&titl
e=American%20Infantrymen%20who%20have%20captured%20a%20machine%2Dgun%2E&stru
cID=455826&dstart=1&keyword=machine%20gun&NUM=0
US Infantry with captured machine gun 1918
http://digital.nypl.org/mmpco/searchresultsK.cfm?&trg=2&image_id=813887&titl
e=British%20and%20Italian%20sentries%20in%20an%20Italian%20town%20near%20the
%20front%2E&strucID=453811&dstart=1&keyword=italian&NUM=0
US and Italian sentries in Italy late 1917 / early 1918
http://digital.nypl.org/mmpco/searchresultsK.cfm?&trg=2&image_id=814166&titl
e=Morning%2Dparade%20and%20inspection%2E&strucID=456009&dstart=1&keyword=191
8&NUM=0
US Infantry on inspection 1918 (painting)