MacAskill Donald
Maciejewski Edward T.
Marsh Geoffrey D.
Martinez-Burckhardt Juan C.
Mayotte Leo G.
McMath Henry G.
McNally Pittsburg Mfg. Corp.
Meedom Halvor
Menzel Karl
Mersmann Heinz G.
Michaelsen Dieter
Michálek Zden{haeck over (e)}k
Molten Metal Engineering Co.
Murray, Jr. Charles R.
Muruganathan Velauthapillai
Muschelknautz Ulrich