If the death was certified by the Coroner then it must have been referred to him for some reason, in all probability because she hadn't been seen by a doctor before her death and maybe the thought that there was some problem involving public health with eg. food poisoning.
The fact that the death certificate wasn't issued till November doesn't necessarily mean she wasn't buried till November, the Coroner can issue a certificate to allow burial to take place.
This is why deaths did, and do not always take place in the month the certificate was issued.