Hi Susie, I cannot see how a fit man in his early 60's could suddenly have become a frail old man. There was little 'old' about Ralph from what we are told....mature maybe, one minute he's a strong tall man too tall and strong for Sheila to beat and the next he's a frail old man...seems to me he ages by the day in Steve's head...which is sort of logical, I guess but steve seems to have pressed the fast forward button.
...I'll keep away from him. 
Well don't ditch the facts when there are so few which can be established in this case in the first place. Nevill was off work from his magistrate's job through stress,though it seems true to character he was still pushing himself in his role as farmer. Maybe the workload did fall more on Jeremy those past few months,and Jeremy,who wasn't fond of farming at the best of times resented this and sensed that Nevill was finally growing old.
As for ignoring people,I don't as a rule,unless there are posts of no merit whatsoever which add nothing to the debate but just target invective at one's person. We have this forum as a means of communication,we have the right to free speech and freedom of expression,but we should use it wisely.