Notes
"The John B. Stetson Company was established in Philadelphia, Pennsylvania, in 1865 when John B. Stetson decided to mass-produce a hat like one he had fashioned for himself out of necessity during a lengthy Western expedition. Stetson's Boss of the Plains, with its high crown and wide flat brim, became the prototype for all other cowboy hat designs. Now located in St. Joseph, Missouri, the Stetson hat factory there and its second factory in Galveston, Texas, continue to turn out the "Boss of the Plains," along with over 100 variations for men and women."
(Source: Wikipedia: https://en.wikipedia.org/wiki/John_B._Stetson_Company)
"Stetson employed over 5,000 people and used 16 million animal pelts during its peak production period in the 1920s. Twenty-five buildings occupied nine acres (totaling 32 acres of factory floor) in the vicinity of Germantown and Montgomery Avenues."
(Source: Philadelphia Place: http://www.philaplace.org/story/326/)