In 1878 a J J Turner was a witness at the marriage of Alfred.  This has to have been this Joseph James witnessing his brother's marriage in Islington, Middlesex.

Found in the 1881 and 1891 censuses. unmarried in both; his second name is only on the 1891 census.  In 1891 he was still in Dumfries.

This might be his death on Scotland’s People (the only Joseph James death from 1891 to 1950):

Surname Forename  Age at death  Year  Ref      RD Name
TURNER  JOSEPH JAMES   60        1911  836/ 10  Kirkmichael (Dumfries)

The death certificate will be cheap so I might get hold of it.  I think it has to be him.  I wonder if he left a will?

No will is to be found.

His death register entry excellently shows his parents and his mother's second marriage:

Death Year: 1911
Death Location: Parish of Kirkmichael, county of Dumfries

register No: 10
Name and occupation:  Joseph James Turner, Retired Tea Planter
Death on and at: December fifth, 11:30pm, Lambholm
Sex:          M
Age:          60 years
Parents:      Joseph Turner, Brewer (deceased), Elizabeth Turner, afterwards Rennie, M.S. Smith (Deceased)
Death cause:  Fracture at base of skull, 7 Days, As cert by Thomas Reid M.D.
Informant:    David Blacklock, Distant Cousin, (Present), Mollin, Johnstone
Registration: December 7that Kirkmichael, Alex Gracie, Registrar.
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In the 1911 census he was still with the Scotts, the farmers who had him in their house in 1901, at "Lambholm, Mirkmichael, Dumfriesshire, Scotland" and his entry was:
Name: Joseph J Turner
Relationship: Boarder
Age:  60
Marr Status:  Single
Occupation:   Private means
Birthplace:   India (Europ Origin)
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The death register entries of "Retired Tea Planter" and his 1911 census birth entry of "India" both conflict with other information for him.  So I have obtained the enumerator's sheets for all his Scottish census entries:

In 1861 he was boarding at a school at "Huttonhall Schoolhouse, Carlaverock, Dumfriesshire, Scotland" and his entry was:
First name(s) Last name Relationship Marital status  Sex  Age  Birth year  Occupation  Birth place
Joseph Turner Pupil -        Male 10   1851        Scholar     Ceylon

In 1871 he was not with his mother nor found anywhere else.  The Scots indexes to this show two Joseph Turner entries of the right age in this census one at Kilwinning, Ayr and the other at Alloa, Clackmannan but I will leave these until I have some spare credits on Scotland's People.  FindMypast has the same two index entries and gives transcriptions with my subscription.  The Alloa entry was with his parents so was not Joseph James T.  The Kilwinning entry was with his mother and so was not Joseph James T either.

In 1881 he was with his mother and her new family at "5, Bucclench Street, Dumfries, Dumfriesshire, Scotland" and his entry was:
First name(s) Last name Relationship Marital status  Sex  Age  Birth year  Occupation  Birth place
Joseph J Turner Step Son Unmarried       Male 30   1851       Shipping Clerk  Ceylon
The census image adds only that he was a British Subject.

In 1891 his mother had died in 1882 and his step-father had re-married and he was still with his step-step parents at "Bucclench Street, Dumfries, Dumfriesshire, Scotland" and his entry was:

First name(s) Last name Relationship Marital status  Sex  Age  Birth year  Occupation  Birth place
Joseph James Turner Step Son Unmarried       Male 40   1851   Shipping Clerk Retired  Ceylon
The census image that Ceylon was "Ceylon India".

In 1901 he was with a farmer and wife at "Lambholm, Kirkmichael, Dumfriesshire, Scotland" and wlso there was his nephew Alfred George Turner and their entries were:
First name(s) Last name Relationship Marital status  Sex  Age  Birth year  Occupation  Birth place
Joseph I Turner - Single        Male 50   1851       Living On Own Means  Ceylon
Alfred G Turner - Single        Male  11  1890       Scholar  England
The census image adds nothing to this.

So, consistenly his ocupation, if any, was 'Shipping Clerk' and he was always recorded as born in Ceylon.  I have no idea what he was doing at the time of the 1871 census but there is no evidence that he was ever a tea planter.  I think his distant cousin, David Blacklock, got him confused with his father, Joseph Turner, who had indeed been a tes planter in Ceylon.

Alternatively it is just possible that Joseph james was confused and may even have had some sort of breakdown in his twenties which led to him retiring to his mother's where he stayed for the rest of her life and beyond.  Someone may well have provided financially for him, either his mother or his step-father or both; bear in mind that his siblings to this day have kept on the Rennie name as a forename and it could have been because of james Rennie's kindness to Joseph James, his step-son.  I am merely speculating here.
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