Should you get back to the Barker's of Bakewell around the middle of the 18th century then the following may be of interest:
The Metropolitan Archives library:
Document 1 (Ms 29744A) – Loose leaf
William Barker, son of Thomas & Sarah Barker of Bakewell in Derbyshire, born 31th Jan 1739, was married in Smyrna to Thora Robin daughter of Giovanni Batista & Katerina Robin (French subjects) born in Smyrna August 1739, by the Lutheran minister Christophoro Guighilma Ludecke, according to the rites of the church of England, the 16th Oct 1763.
Children: Sarah / Thomas (x) / William / Gratia / John / Robert / George, 1764-1774
Some christened by Dutch minister B. Keun
Some christened by English minister B. Clendon
Flora the wife of William Barker died 16 Dec 1775
1776 remarried Dutch subject Elizabeth Mary Schnell who was born in Smyrna 1760, married by B.Keun.
Children: Arthur Francis (x) / Richard / Marianna / James (x) / Mary / Edward / Peter (x) / Francis (x) / Frederick / Louisa / Samuel / Henry Richards / Benjamin, 1777-1797
Sworn to the truth of above, signed before me 1806
Also signed by André Slaars (resident 50 years), Robert Wilkinson (resident 34 years).
Done due to the ‘Consularian house fire’ 1797.
What I find quite amazing is that when I got married in Izmir in Jan 1957 the Consul who married us was a Richard Wilkinson. Sounds like the British Consulate was a long time occupation for the Wilkinsons for nearly 200 years!!!