Looking for Family of Elizabeth Helene Walker Armstrong NE England

Elizabeth Helene Walker born 1849 La Ciotat, France
married
John Hutchinson Armstrong (born 1838 Corbridge, England)
St. Olave's church, Southwark, London on June 1868

Elizabeth's parents: Robert Allen Walker and Eliza Thornley

John's parents: James Armstrong and Margaret Hutchinson

Thank you,
JBurdis