They started the DuBois ZCBJ Hall in 1920 and finished 100 years ago, in 1921. On Sunday afternoon, December 5, big doins’ at the Hall to celebrate its century mark, following notables like Evelyn Mach Pettinger of Pawnee City, a little Bohemian girl born in DuBois about 103 years ago, and, this year, Hank De Koning of Burchard, who married the “tough little Bohemian girl” who graced much of his a…