The children were:-
1. Daniel Creer chr 13 Oct 1802 at Douglas St George and buried 21 November 1802 in Braddan
2. William Creer chr 18 Dec 1803 Douglas St George - no further trace although he may have gone to Liverpool (see 1851 census William Creer lodger at Copperas Hill, Liverpool a joiner)

Unfortunately I do not have much on this family line.

Good luck

John