The Free On-line Dictionary of Computing (30 December 2018):

Algebraic Compiler and Translator
ACT 1

    (ACT 1) A language and compiler for the Royal
   McBee LGP-30, designed around 1959, apparently by Clay
   S. Boswell, Jr, and programmed by Mel Kaye.

   (http://ed-thelen.org/comp-hist/lgp-30-man.html)

   (2008-08-04)