To expand on what Millipede has posted.
On 2 April 1817, James Bowes Kitchner son of Gillman Kitchner late of Tenter Ground Moorfield Turner and Citizen and Dyer of London was admitted to the Freedom of the worshipful Company of Dyers by Patrimony.
Note that GK was also a Citizen and Dyer of London. He had to be for his son to be admitted by Patrimony.
Another related image (of three) includes this information.
Copy 1784
Born 1791
The first is the year of the admission of GK to the Freedom of the City.
The second is the year of JBK's birth. Under the rules of Patrimony he has to be born after his dad was admitted.
There are further documents in this collection: UK, Register of Duties Paid for Apprentices' Indentures, 1710-1811
They record that GK was (at the time of taking one apprentice around 1784): of Bishopgate Co Middlesex Turner
ie not yet free of the City.
At the time of taking another apprentice around 1786, he was: Citizen and Dyer of London
This is consistent with the date above.
Because GK was free of the City, there should be documentation of his admission in the records of the Dyers' Company. (Probably at LMA - don't have time to check.)
Technically, it should also be in the Freedoms collection on Ancestry. A very quick search hasn't revealed it. The indexing of that collection is famously ropey, and some documents are irretrievably dirty and damaged.
I do recommend you find a way to collect these records if you can. Finding an ancestor was a Freeman of the City is most helpful to research.
ADDED:
It was quite possible for a Turner to be a member of the Dyers' Company in the latter half of the C18th.
