Hello,
I think I can give you some details about the marriage of Henry Kemp and Charlotte Erstina Winkler. They married in Cochin on May, 2nd 1835 and this is the transcription of the parish register (found at the British Library)
"1835 N/2/O/3, f. 14
Henry Kemp and Charlotte Winkler
Marriages at Cochin.
Henry Kemp, Bachelor, Master Mariner, and Charlotte Winkler, Spinster, both of Cochin, were married in this Church of Cochin by License from the Right Honorable the Governor this second day of May in the year of our Lord one thousand eight hundred and thirty five, by me, S. Ridsdale, Officiating Clergyman.
This marriage was solemnized between us: H. Kemp, C. Winkler
In the presence of: R. Oliphant, Sarah Buchanan"
Charlotte was the daughter of Pieter Winkler, pilot of Cochin harbour, and Caroline.
Pieter was from Dutch origins but born in Schleswig-Holstein, Germany. He probably emigrated to India by 1790. Married twice. He had at least 7 children with his second wife Caroline (maiden name still unknown).
Charlotte was born on 30/10/1813.
I have no info about her married life and what happened to her children.
I don't know if they stayed in India or moved away.
Best regards from France,
Annick