Of course I include them. The tree is 'family history' - any am. genealogist who omits them wouldn't get very high marks from me.
The silly billies don't realise they may be omitting vital clues to family susceptibility to illness or gene irregularity do they?
My mother's sister had a cot death with her first baby (the next children grew to adulthood thankfully). The syndrome isn't in any line I've researched but I bet it's in the father's line somewhere - he died in his early 50's as he was getting on a bus to go to work and his son, my cousin, suffered his heart attack in his late 40's. thankfully he's still with us.
Rena
I include all of mine too.
My paternal grandfather's brother, David Hibbert, died at just over 2 months in 1884 in Salford, Lancs., and the cause of death was given as: "Found dead in bed, no satisfactory evidence of cause of death". The informant was Frederick Price," Coroner for Lancashire, inquest held September 3rd, 1884."
It seems likely he died of SIDS, sudden infant death syndrome, and likely there were many other children who did as well, we just don't know.
I also found out that his grandmother had had twins that were born and died between censuses.
David's mother also had twins, but don't think there is a genetic component as she was not related to her mother in law!
My maternal grandmother also had twins so I was quite concerned I might too, but it didn't happen.
Just as well, one at a time is plenty of work!