HWH-RNG opens on: 3 Feb 1855, the route covered by 1/2 Mail in start
click hereArticle tells 1855-56 was when First Class GD train exist (DEP 8:30 PM & succeeded by Mail). 3 Feb 1855 is line opening date (Line Open Date is incorrectly taken by all Railfan as the day when first Mail Service started in any route)!!