Sc. [SQUARE sb. 1.] A carpenter, stone-cutter, or other workman who regularly uses a square for adjusting or testing his work.
c. 1790. Encycl. Brit. (ed. 3), VI. 171/2. The incorporated trades [of Dumfries], viz. square-men, smiths [etc.].
1808. Mayne, Siller Gun, I. xxvi. The squaremen followd i the raw, And syne the weavers.
1837. Carlyle, Fr. Rev., III. V. i. How many hammermen and squaremen, bakers and brewers must ply their old daily work.
1879. Encycl. Brit., IX. 750/1. There was probably a pass-word, such as the squareman word used in the brithering of the wrights and slaters.