Inventor of process to make steel from low-grade ore

[Segilla]

I vaguely recall something like a 19C Clerk to a Central London Magistrate's Court, in his back garden perfecting a process to make steel from low-grade iron ore.

It was said that had the Germans not got hold of the technique they could never have prosecuted WWI using the ore mined in their country.

.Facts please.

[kempie]

I presume you mean Sir Henry Bessemer - link.