KOCK and KOCH are different names and differently prounounced.
KOCH is the german word for cook, but the ending is not spoken as a "k". The
single "o" in both names is a short sound. When you are surprised or
something unexpected happens you sometimes say "Oh". That's how it sounds,
if you speek it shorter or faster (what would be the right word??).
The "CK" in KOCK is spoken as a "K" like in Cook ore Coke.
This is really interesting to me. Our pastor's last name is Koch and he makes sure everyone pronounces it as "Coke." Now I'm wondering what the name was back in Germany. I done his genealogy back a few generations to the immigrant and it's consistently "Koch."
Cheryl