Dempster joined the firm .
In 1886 firm moved to a new location on West Court Street , but frequent flooding from the Blue River necessitated a move in 1889 to firm 's current location at 711 South Sixth Street .
Dempster joined the firm and in 1886 it moved to a new location on West Court Street , but frequent flooding from the Blue River necessitated a move in 1889 to its current location at 711 South Sixth Street .