Posted By:
Todd SchultzGiven the verbiage, it may have been issued by an insurance company. I spent a few minutes on google and see where Pittsburgh suffered a horrible flood in mid-March 1907:
"The greatest flood in the history of Western Pennsylvania, West Virginia, and Eastern Ohio is being experienced to-night. Thirty-one lives have been lost in the various swollen streams and flooded district, and property damage incalculable has been sustained.
A large part of Pittsburg is submerged, and 100,000 persons are thrown out of employment."
http://www.gendisasters.com/data1/pa/floods/pittsburgh-flood-mar1907.htm
Of course I'm just speculating, but it seems that right before the baseball season, the people of Pittsburgh may have looked to Wagner as a rallying cry.