There are 30 burials of Kerruishes in the Old Malew Yard
The only Margarets are:
Margaret 6 Feb 1823
Margaret 80 8 Feb 1898 Castletown
Margaret 75 16 Jan 1904 Douglas

The Roberts are:
Robert 3 Jan 1800
Robert 36 18 Jul 1852 Castletown
Robert 63 10 Oct 1880 Douglas Flour Dealer
Robert 84 17 Jun 1831 Tanner

I already gave you the Margaret and Robert M.I.s