or better still the birth registration (FreeBMD)
Mable Elizabeth KING Jun Qtr 1896 Blything Ref: 4a/973

A copy of this would give you Florence's maiden name & you would then be able to find the marriage of John & Florence. A copy of that marriage cert would enable you to positively confirm his fathers name.
If you look at the 1891C on the same page as John & Florence you will see a John & Martha ***stead with a son John 19 born Plumstead, Kent. 1871C John & Martha Newstead both born Suffolk living in Plumstead with daug Louisa 9 born Suffolk & daughter Florence E 4 born Plumstead, Kent. By 1881 they are all back in Leiston.
I think John & Florence married in the Mar Qtr 1888 FreeBMD lists them under 2 different ref nos so it would need some research
John KING Mar Qtr 1888 Blything 4a/966
Florence Elizabeth NEWSTEAD Mar Qtr 1888 Blything 4a/968
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