DIRECT SHIP MAIL BETWEEN ST.THOMAS-FREDERIKSTED-ST.THOMAS
The emphasis on transit mail between the islands of St.Thomas and St.Croix has mostly centered on the St.Thomas to Christiansted route via the schooner "Vigilant" - but many other ships were used for carrying mail. There was an active direct ship route
between St.Thomas and Frederiksted. These letters will only show St.Thomas and Frederiksted postmark and the cancels may be two days in between.