The Parachute Adams fly is one which should be in all river angler fly boxes.
This fly was originally tied by Leonard Halladay and named after his good friend Charles Adams (from “The History of Fly Fishing in Fifty Flies”, by Ian Whitelaw (https://www.amazon.co.uk/History-Fly-Fishing-Fifty-Flies/dp/1781314012). Nobody is really sure exac