l_union_codes_and_names: 204

This data as json

code	union_name
204	Roofers, Deep & Waterproof Workers Assn.; United Slate, Tile & Composition - RDWW (Changed to Roofers, Waterproofers and Allied Workers)

Links from other tables

239 rows from petitioner in r_master
182 rows from recogn_union in r_master
114 rows from union_lost_intl_1 in rc_elect
0 rows from union_lost_intl_2 in rc_elect
0 rows from union_lost_intl_3 in rc_elect
0 rows from union_lost_intl_4 in rc_elect
98 rows from union_won_intl in rc_elect