Hi Jeff , checked the IGI index and have found :
John Clucas , christened 20/3/1836 at St Marks , which I think is in Malew IOM . Father Clave Clucas , mother Ann Mylechreest . Clave and Ann appear to have been married 12/1/1833 in Malew . John's siblings appear to be :

Ann 1834
William 1839
James 1842
Clave 1846
Henry 1849
Edward 1852
Robert 1855

Clave appears to have been christened 24/12/1809 at St Marks , to Clave Clucas and Elizabeth Cain .

This Clave Clucas seems to be Christened 28/12/1781 to John Clucas and Margaret Fargher

Plenty more things to find on the IGI .

My wifes maiden name was Clucas , her grandfather Edward Bruce Clucas came to Australia around 1915 .

Cheers
David Dwyer
Sydney , Australia