The Nuttall Encyclopedia
A town on the Isle of Sheppey, 2 m. S. of Sheerness, between which and Flushing, in Holland, a line of steamers plies daily.
Wood, James, ed. Entry for 'Queenborough'. The Nuttall Encyclopedia. https://www.studylight.org/encyclopedias/eng/nut/q/queenborough.html. Frederick Warne & Co Ltd. London. 1900.