Mary Jane's parents were John Meddings and Susan Cotterill (b. June 4, 1830 in Blymhill, Staff). They were married on May 24, 1860 in Newport, Shropshire. John died between 1867 and 1874 after which Susan married a William Morgan.
John and Susan had four children: Sarah Ann (1861); Frederick Ernest (1862); Mary Jane (1864); and Jessie (1868).
I have no information on John Medding's parents but a wealth of information on Susan Cotterill's.