In 1887, John Bartholomew's Gazetteer of the British Isles described Solway Firth like this:
Solway Firth, arm of the Irish Sea, bounded by the counties of Kirkcudbright, Dumfries, and Cumberland; extends inland in a NE. direction 40 miles, with a breadth diminishing from 20 miles to 2 miles. It receives the Urr, Nith, Annan, Esk, Eden, Wampool, Weaver, Ellen, and Derwent. The Solway is to a great extent occupied by broad sands, dry at low water, and is remarkable for the rapidity with which its tides ebb and flow. It abounds with fish, including salmon. The Solway Railway Viaduct (opened in 1869, reopened to traffic in 1884), between Bowness, Cumberland, and Annan, Dumfriesshire, is 1960 yards long, with banks from the English and Scottish shores 440 and 154 yards long.
GB Historical GIS / University of Portsmouth, History of Solway Firth, in and Kirkcudbrightshire | Map and description, A Vision of Britain through Time.
Date accessed: 02nd October 2014
Click here for more detailed advice on finding places within A Vision of Britain through Time, and maybe some references to other places called "Solway Firth".