The Collaborative International Dictionary of English v.0.48:
Glass maker \Glass" mak`er\, or Glassmaker \Glass"mak`er\, n. One who makes, or manufactures, glass. -- Glass" mak`ing, or Glass"mak`ing, n. [1913 Webster]WordNet (r) 3.0 (2006):
glassmaker n 1: someone who makes glass