Show 1 UNCLE SAM SUM KM PLUMBERS PLOWS TOT Federal Grand Grand' j jury rf Hear Hearing e ing Many Witnesses Witnesses' at atc Sioux J City Iowa c SIOUX CITY Ia Ift Oct Oct l h gor- gor emment I 4 inv investigation sti tion of th ed national nation l plumbers' plumbers trust continued here beT today wili wih Assistant Attorney Assistant A General Gregg in charge har e. e The proceeding bo be lore fore the federal grand and jury jur ar are shrouded shroud shroud- ed cd in much secrecy Manufacturers Manufacturer wholesalers a and d' d contracting plumbers from many nany Dany parts of at tho country are bein being be be- being in ing ex examined mined As Ad to the steps in n tho the government s 's plan with wih regard to the slumbers plumbers Mr Gre Gregg was ws noncommittal He said eaid the action to be le taken taken depend depended ed cd upon tho weight of the evidence to show an ie illegal al combination on the part of the plumbers National om officers erB of tb the tho Plumbers Plumbers' association association as as- a. a arc are as follows Chris Irving Irin of Denver president S. S Louis Loui Barnes Bares of Philadelphia vice president Archibald O. O Davis of Denvert Denver Den Denver ver vert ver secretary and William McCoach of Philadelphia treas treasurer |