Hi Ellesse you are doing the right thing by working backwards with your family

to confirm what you have
marriage in the Parish Church in Darnell Sheffield 19.03.1908
John Ernest Whiting (born abt 1880) do you mean aged 28 ?
what occupation ?
what address was given ?
father John Whiting - what was Johns occupation and was he given as deceased ?
&
Mary Ellen Bishton (born abt 1887) do you mean aged 21 ?
what was her occupation ? address ? who was her father and what was his occupation ? was he deceased ?
who were the witnesses ? this is important as they could be relatives
i wondered if Mary was from the travelling community or from Sheffield and this would help as to where they met .... possibly