0000354204-01-000375 SC 13G 1 20010202 BHA GROUP INC 0000801128 3564 431416730 DE 0930 SC 13G 34 005-38753 1522496 8800 E 63RD ST KANSAS CITY MO 64133 8163568400 8800 E 63RD STREET KANSAS CITY MO 64133 DIMENSIONAL FUND ADVISORS INC 0000354204 0000 22370029 IL 1231 SC 13G 1299 OCEAN AVE 11TH FLOOR SANTA MONICA CA 90401 3103958005 1299 OCEAN AVENUE 11TH FLOOR SANTA MONICA CA 90401 SC 13G 1 0001.txt 2000 SCHEDULE 13G - BHA GROUP HLDGS INC