Just thought I would let you know that I contacted the local archive centre at Camden council, and discovered that they held the newspaper I was looking for. Since you suggested that I ask the archivist for some help, I emailed her, and within a couple of hours, she replied sending me a typed copy of an article regarding the death of my husbands mother, which explained more about the circumstances of her death, but unfortunately didnt say where she was to be buried. The archivist also sent me lots of other helpful stuff, details of all the cemeteries in the area etc etc. So if anyone ever needs to research anything in the Camden area, their Local Studies and Archive centre is really helpful. So, thanks Celia for the suggestion, I have found half of what I am looking for. Still need to find the grave though, that might take some time!
Ermy, you were probably right, the article seems to infer that the coroner couldnt be sure it was suicide, and her father insisted it wasnt, but the circumstances seemed to suggest it to me

. Anyway, thanks everyone.