What type of details about john g. schwegmann  can be gathered from the following bio?  Bio: john gerald schwegmann , jr. -lrb- august 14 , 1911 -- march 6 , 1995 -rrb- , was a pioneer in the development of the modern supermarket . based at metairie , louisiana , a large unincorporated city in jefferson parish , he owned eighteen stores in the new orleans metropolitan area . he was a member of the louisiana house of representatives from 1960 to 1968 and the louisiana state senate for a single term from 1968 to 1972 . and he was an elected member of the louisiana public service commission from 1975 to 1980 . a political maverick , he mounted an unconventional -- and unsuccessful -- campaign for governor of louisiana in the 1971 democratic primary election .
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