- Gordon Goodwin
- , revised by H. C. G. Matthew
M'Avoy, Margaret (1800–1820), impostor, was born at Liverpool of respectable parentage on 28 June 1800. Of sickly constitution, she appeared to become totally blind in June 1816. Her case attracted considerable contemporary attention from the readiness with which she was alleged to distinguish, by touch, colours of cloth, silk, and stained glass. She could also accurately describe the height, dress, bearing, and other characteristics of her visitors, and even decipher letters in a printed book or manuscript with her fingers' ends, so as to be able to read with tolerable fluency. ...