I think I’ve got most of this one; just looking for confirmation, and help with the first word in the third line ('owing'?) and the last word of the fourth line ('head' or 'heart') of the marginal note. (Damage to a 'head' makes more sense in a scuffle but 'heart' makes more sense being 'already diseased'.)
‘Found dead on Knoyle Down, after having
been drinking for some hours at Hindon, &
ow[in]g to scuffle in wh[ich] there was no intention to
do hurt, but wh[ich] produced an effect upon his head/heart
already diseased—caus[in]g death.’
(Tragic family, this one. Too-young deaths in addition to Charles (aged 26) include: his mother aged 31, one brother aged 6, another brother (George, my ancestor who went to Australia) who got drunk and was run over by a train at age 48 after his wife a few years earlier fell into a fire causing a week-long agonising death at age 28. After the premature deaths skipped a generation, George’s granddaughter (my grandmother) died in 1919 from the Spanish flu, aged 23, leaving three young kids.)
Peter
