Gainesville Midland Railway, Monroe Branch Line   From 1931 Hammond's County Map of Georgia (Northwestern Part). The map shows the Gainesville Midland crossing the Seaboard at Winder and connecting with the Georgia Railroad and the Greene County Railroad at Monroe.   Georgia's Railroad History & Heritage. Copyright, Steve Storey. Railroad History | The Depot List | Locomotives On Display | Odds & Ends | Sources & References | Home