MADAM, With reference to your readers letter. Flagging this up. I do not know the writer of this letter but would like to make a point from it. The writer has never seen the Union Jack on a flag post in Ross or never will do. With regard to it being flown alongside the cross of St George it would have to be off land. The Union Jack is only flown on a ship leaving port or at sea.
The Jack was a name for a nautical flag which would have been flown by itself or alongside a pendant. It is so called because it is flown from the Jack staff at the rear of the ship.
Perhaps your reader means our Union Flag?
Mike Barnard, Ross