He died at what was presumably his home (Coningsbury House, Sandygate Grove, Sheffield). I think this was a rented apartment. The 'Informant' was a Ronald Peck of Crimicar Lane Sheffield. As far as I can find out, Ronald Peck had been a Headmaster at a local school. As he was about the same age as my father born 1913 (my father was born in 1910) he has since died.
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Hello
Mr Peck may simply be a caller, who alerted someone (after no reply) and then advised he must Register the Death? It is a very serious matter if you come across a dead body or human remains, you can be in serious trouble if you leave it, for someone else to find and report.
Do you mean Coningsby House, Sandygate Grove, Sheffield.
Looks like the block is currently managed by Johnnie Johnson Housing? It seems that Sheffield City Council Housing applicants can bid, to rent a property there as Tenants. They may be able to say whether Sheffield City Council or someone else once owned the block around the year of death.
Link to their PDF
https://www.google.co.uk/url?sa=t&source=web&cd=1&ved=0ahUKEwjV_JyMoIrYAhWDWBQKHQgjBXsQFggcMAA&url=http%3A%2F%2Fwww.jjhousing.co.uk%2Fall-properties%2Fproperty%2Fconingsby-house-253%2F%3Fpid%3D253%26ps_page%3D4%26pdfview%3D1&usg=AOvVaw172QAC4iJWOl7QqcjHnS06(Some UK Councils have sold off some or all of their properties to private companies).
Some Council Housing Departments kept their old property files on microfiche, if you have a Number and if you want to find out about your Father, they might still have a record?
Where he is buried or cremated will hold a record and it might give the Funeral Director (F.D.), some F.D. keep correspondence.
Some people die, with only their current week's Pension.
Some funerals might be termed or known as 'Council Funeral' or 'Pauper's Funeral' or 'Public Health Funeral'?
Very occasionally, someone makes an appeal for total strangers to attend one, due to the expectation that nobody will turn up.
"Last updated: 31 May 2017. Every year, local Councils around the UK carry out thousands of public health funerals, to cremate or bury people who have died alone, in poverty, or unclaimed by their relatives." Very sad.