There he married Catharina Kortenbach the daughter of the pharmacist Wilhelm Kortenbach Wilhelm Killing the subject of this biography was one of their three children the other two being Hedwig and Karl

Can you repeat this sentence, but add in punctuation?
There he married Catharina Kortenbach, the daughter of the pharmacist Wilhelm Kortenbach. Wilhelm Killing, the subject of this biography, was one of their three children, the other two being Hedwig and Karl.