More on Grandad's Funeral

From the Steve Clark book I mentioned in the post below:

Indeed, Lennard Pearce’s real funeral wasn’t without laughter and that’s something by all accounts he would have wanted. John Sullivan was sitting directly behind David Jason and seconds after the vicar announced hymn number 187 John saw David’s pew begin to shake. David was having a fit of the giggles. David turned round to show John that the page was missing from his hymn book and the two men smiled. “John realised why I was laughing,” David recalled. “We were both thinking the same thing: ‘Had Del Boy supplied the hymn books?’