I'll refrain from trying to translate Schmidt.
So you don't know any Germans? Schmidt is the German equivalent of Smith. Someone who makes something, usually in metal working. You know what a blacksmith is, I am sure.
In German, knife is messer and smith is schmidt. So in German someone who makes knives and swords was a Messerschmidt. One of the big centers of armour and sword making in midieval times in Germany was Augsberg. Augsberg was bombed to rubble at the end of WWII because the was a local firm that made fighter planes named after the founder, Willie Messerschmidt.
Yep, and smith for blacksmith (I fancy myself a blacksmith) comes from the word smite meaning to strike. Like the smith does with his hammer. Blacksmith is for iron as it was considered black. Then there are (were) copper-smiths, tinsmiths, silversmiths, goldsmiths, and even more lately in history whitesmiths for aluminum and stainless. The more malleable alloys and grades of aluminum can be forged cold, although not a lot of people are doing it.
And tom, Ill bet your name comes somehow from the German word for smelt. Ill bet your ancestors worked foundries.
I love this stuff, how names come from trades, Baker, Carpenter, Brewer, which brings us back to the subject.