Greg, there is a little extra information in the Maughold parish register:
Catherine KAIGHIN ag. 77, College St, Ramsey, buried Sep 4 1864.

These are the other Kaighen/Kaighin burials from Ramsey:
John KAIGHIN (Ramsey) May 11 1830
Mrs Ann KAIGHIN [aged] 66, Ramsey Sep 27 1833
Edward KAIGHIN 22, Strand Street, Ramsey 26 May 1850
Cathe KAIGHIN 17 months, Strand Street, Ramsey 29 May 1850
Walton KAIGHIN 2, Ramsey 14 Jul 1856
John KAIGHIN 9, Sand Street, Ramsey 14 Jun 1860
Edward KAIGHIN 4, Sand Street, Ramsey 13 Nov 1860
John KAIGHIN 42, College St, Ramsey May 22 1863
Thomas KAIGHIN 51, Quayle`s Ct, King St, Ramsey Sep 6 1872
James KAIGHIN 74 yrs, Albert Row, Ramsey Mar 22 1876
Charlotte KAIGHEN 4 mths, Albert Cottages, Ramsey Jun 10 1882
Ellen KAIGHEN 22 yrs, Ramsey Apr 27 1883
Robert KAIGHEN 6 days, Ramsey May 1 1883
Mary KAIGHEN 16 yrs., Ramsey 12 Sep 1884
Elizabeth KAIGHIN 74 yrs., Ramsey 14 May 1890
[Checked to 1890]

Other burials would be in the Ramsey registers.

Sue