The first-floor trading room of the exchange became an important venue for buyers and sellers to discuss pressing political matters. Members of the exchange included some of the city's most prominent officials and the organization began to play an important role in civic activities. Members encouraged participation in local charity drives and took an active role in defining policies and practices that benefited the greater Memphis area. The group fervently supported quarantine regulations during the 1878 and 1879 yellow fever epidemics that swept across the city. Members of the exchange voted in 1905 to place an embargo on cotton shipped from New Orleans. At that time the city was in the throes of a particularly bad yellow fever epidemic and the measure spared Memphis from the same fate.