The Maughold parish register records both their burials: Florence Margaret LASCELLES, 87 years, Thie ny Greeney, Sulby, buried 13 May 1965.
Rowley William LASCELLES, 59 yrs., Maughold, was buried on 17 Oct 1928.

There could be M.I.s for them in the FHS transcripts.
Thanks, Donna, if you would check for these.

Sue