His incentives gradually won over people , who moved their businesses to Polk Street in the new commercial district .
Sanborn also offered to trade lots in the new location to businesses in the original city 's site and help with the expense of moving to new buildings .
Sanborn 's incentives gradually won over people , who moved their businesses to Polk Street in the new commercial district .
Sanborn also offered to trade lots in the new location to businesses in the original city 's site and help with the expense of moving to new buildings .