He was its vice president of sales since 1966 , executive vice president since 1971 , and president since 1973 .
Hays started his career at the Southwestern Company in 1956 .
Hays was its vice president of sales since 1966 , executive Hays   since 1971 , and president since 1973 .
Hays started his career at the Southwestern Company in 1956 .