let me try the next words.
Louise's cause of death looks like "Geschwürartige Krankheit". But don't ask me what it means. Translation for this could be "abscesslike illness" or "ulcerlike illness". I've found an old book (in German) where is written that miliaria, measles and pox are also called "abscess illnesses" (Geschwürkrankheiten). So it could be an illness that looks like one of these. That are my thoughts about it, and I could be wrong. Maybe you can ask a medic.http://books.google.de/books?id=iOc8AAAAcAAJ&pg=PA169&am...
Under "Die Hinterlassenen" for Louise after the word mother I read "u. drei Geschwister" that means "and three siblings".