My link with the Cretneys is as follows:
John Callister (my GGfather) married Eliza Cretney, born 19 November 1840, (said to be one of 14 children) daughter of Thomas Cretney and Jane Kissack, at Marown on 2 August 1864.

They are buried at Marown: ‘John Callister of Ramsey, (Agent of IOM Mining Co) died 14 June 1907, 66 years. Eliza Callister his wife died 3 January 1908 aged 67.’

The couple initially lived in the Foxdale area, then moved to Douglas, and finally Ramsey.