Hi,
Once you have her death certificate, which will show where she died and her usual address, you should then have an idea as to where she might be buried and to start your search in that area.
The death certificate will also give the date she died, which will make it easier to search local newspapers. The library might be able to tell you which newspapers were in the area in 1933. Not all deaths featured in the "announcements"; if she was well-known in the area there might be an obituary.
Nanny Jan