found: Work cat.: Amelung, M. Fun̈f Grass'sche Jahreszeiten, c2007:p. 33 (Grass-Familie)
found: Gottschald, M. Deutsche Namenkunde, 3. Aufl., 1954:(Grass, from MHG "passionate"; variants: Grasser(t), Grassold, Krasselt, Crassold, Grassinger, Grasulf)
found: Bahlow, H. Dictionary of German names, 2nd ed., c2002:entry (Gras̈er, Graser (men in charge of mowing the city meadows; family name from 1389; variants: Grass, Gras̈s(e)l, Grassmann)
found: Internet surname database, Oct. 27, 2008:(Surname: Grass; in Germany: Gras, Grasse, Grassmann, Graser)
