The Van Cuylenburg family are in my husband's family tree. We have the following information if it is of any use. Sorry, no documentation to back it up:
Wilhelmus Phillipus van Cuylenburg, born 21 May 1718 in Rosendaal, near Breda, Netherlands; died 9 April 1762 in Colombo (Ceylon) Sri Lanka.He was the son of Reverend Johannes van Cuylenburg and Elizabeth Soest.He married Antonia Gomez (born 1720) 19 November 1741 in Colombo (Ceylon) Sri Lanka.
Children of Wilhelmus van Cuylenburg and Antonia Gomez are: i. Johannes Wilhelmus van Cuylenburg, born 29 June 1743; married (1) Petronella Pardoen 14 June 1767 in Colombo (Ceylon) Sri Lanka; born 16 February 1754; died 14 April 1788; married (2) Johanna Brinkman 30 October 1791; born Abt. 1746 in Colombo (Ceylon) Sri Lanka. ii. Michael Roeloff van Cuylenburg, born 5 November 1744; married Dorothea Christina Goldestein 1 November 1772; born 1755. iii. Maria Petronella Elizabeth van Cuylenburg, born 10 December 1748. iv.Christiaan Leonard van Cuylenburg, born Abt. 1750.
Joan Thomas (wife of Robert Thomasz, born Ceylon 1941)