Hi Haff....

Re your comment:
" I am not really familiar with IGI records - just wondered how reliable they are/how you can form view on their reliability etc."My view on that is: The IGI is
only a finding aid and the original record should be consulted to determine the entry as fact.It is a great tool to help find baptisms and marriages and help with ideas of other parishes as to where to look next etc, but you can't beat viewing the actual entry... and very often the original has extra info which is not in the index.
The IGI is a database of genealogical records by The Church of Jesus Christ of Latterly Saints and created to help track the temple ordinances for the deceased. Information comes from various sources, such as; records extracted from microfilmed birth & marriage records but also comes from "community contributed", which is personal family information which was submitted to the LDS. The community contributed stuff is known to have some dubious content!
I have revisited my previous posts and realise the William 8Th Oct 1837 - parents William & Mary.... is not the correct William.... his parents should of course be John & Mary and their William was born about 1836 and his baptism is not showing as taken place at Shirley.......

Just out of interest the
other William is with his parents here in 1851 = HO107/Piece2146/ Folio 89/Page 7 - Shirley, Derby's.
But.... the good news is, Derbyshire Record Office are in the process of digitising the parish records plus other things, such as workhouse records and the last I heard was, it's hoped they will be online, maybe in 2014 on a pay to view basis. I can't wait, then we can all be Derbyshire specialists!
Regards
Sheila.