Albert Spear Hitchcock (September 4, 1865 - December 16, 1935) was an important American botanist and agrostologist. Specializing in grasses, he was the chief botanist for the USDA from 1928 until his death. He authored over 250 works during his lifetime. Wikipedia
The definitive Wikipedia entry for A. S. Hitchcock. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/A%2e_S%2e_Hitchcock