I did find the information about the Patrick Collins who committed suicide, thanks, and have held it 'in reserve' for some time! As you say, Millipede, I did wonder if it was a 'story' and if Patrick had simply run away and subsequently went to Australia etc.
However, there is just that nagging doubt. Why would two separate members of my family, long long after the event, tell me that he was buried in Plymouth, if it wasn't true? I was just a kid when they told me. And it wasn't so much that they had told me (as you say, it could have been a 'story' handed down by the mother) but the fact that they had visited the grave. My aunt used to live in Plymouth at one stage so that would have been the opportunity.
The reason this has come up again is because only yesterday I was told by a cousin that her mother had told her something that I had never been told before ie that he had died on an accident on board ship 'when they were on their way to England.' At last, I thought, a logical reason why a man who lived in Cork should have been buried in Plymouth!
But, how would they have dealt with it, I wonder? Would they possibly have unloaded him and kept him in a mortuary somewhere while she continued her journey to London and then travelled back to bury him later?
My great grandmother's name was Margaret Collins nee Kennedy, born in Cork in 1856. They married in Cobh in 1879 and their child, Cornelius, was born in 1880/1.