Walker Group Names Miller VP-Sales and Marketing Jim Miller has been named vice president of sales and marketing for Walker Group Holdings and its transportation tank companies. Miller will integrate the sales and marketing efforts of WGH’s seven transportation tank companies: Brenner, Bulk, Defense, Garsite, Progress, TST and Walker. As part of the reorganization, Thomas Ballon was appointed vice president of sales for the Brenner and Bulk product lines.Nature’s Calling Acquires Fenn-Vac Russ Perkins, owner of the portable restroom company Nature’s Calling in Charleston, S.C., has acquired Fenn-Vac, the solid waste handling company which he helped start in 1983. Perkins
