MEXICAN EXPEDITION ARMY YMCA STATIONARY USED BY SOILDER 'S POEM HOME

This appears to be an original type-written poem in a letter home from a solider who was stationed near the US-Mexican border during the General Pershing-Led Mexican Expedition or (Pancho Villa Expedition) during the 1916-1917 period (also during the WWI period). It is on Army YMCA stationary. And it is obviously an extremely rare piece. I found this at an estate sale recently. The poem which I searched in Google (but turned up nothing) reads as follows: It is entitled "The Seventh On The Border"

"The First and Second left us now. We are happy just the same. To remain upon the border and learn the Great War game. We are all citizens [sic] soldiers. And not afraid to fight. But the Mexicans are our choice and not the railroad strike. We hope to stay in Texas for border duty alone and not for railroad strike duty would this fighting Seventh go home. We all have wives and sweethearts back home in dear old CHI and rather than be called a fink, on the border ewe [sic] would die. Every man in the Fighting Seventh would be honest brave and true and would face the greasers bullets for the Old Red White and Blue. Wev'ed [sic] advanced across the border under heavy shoot and shell. But for strike duty on the railroad Illinois can go to Hell."

I cannot find any poem like this when I searched the Internet so I am going on the assumption that this is original to the author of the letter, a solider stationed near the Mexican border during the Mexican Expedition. Fantastic picture on the stationary which is lined for writing home. Interesting, is the mention of railroad strike duty as well as references to Illinois "can go to Hell." I am not certain but it appears the military was used to quell railroad strikes at the time and apparently there was a call for nationwide or regional railroad strike during this period. Additionally, noteworthy is the racist term for the Mexicans: "Greasers" as the soldier refers to the enemy. Just an amazing piece of correspondence and in poem form. It is unsigned and I do not have the envelope it was sent in. This measures 9.5" by 6" when opened. Of interest to military and poem/literary collectors. And holds some interest for railroad collectors as well. Thank you.