Marg, you must have seen the many messages saying how unreliable the non-extracted entries are in the IGI. If you click on the film number under 'Source Call No.' at the bottom of the screen you will see where the info. comes from. If it doesn't come from the parish register it should be discarded.
Ancestry trees cannot be accepted as accurate without double-checking, when sources are rarely given.

The Deaths given in the IGI are also often wrong. Occasionally they come from a will, or because the Church wants to alert people to a burial - that a child of this name died soon after birth - so that their members shouldn't be looking at this person as an ancestor. However in a place which has several people of the same name it is very hit or miss, and some entries are ludicrous. There is a death for John Ratcliff "Christening: About JUL 1668 Andreas, Isle Of Man, England Death: 23 FEB 1847". This is one example of how little double-checking is done.

Sue