The following are Magnalls and Mangnalls that I have found in Lewis’s Manchester Directory for 1788 :-
Page 21 – Magnall, William, warehouseman, New Bridge street, Salford
Page 37 – Mangnall James, Rivington, fustian manufacturer, Goodier’s Calender house, Crow alley, King’s Head, Salford
[Last updated 02 Jan 2004]