Molly: Inside You There Are Two Middle Aged, Widowed Crime Novel Protagonists

I was going to call this "inside you there are two middle aged detectives" but, critically, one of these men is John Banville's Quirke. Quirke is not a detective, but a pathologist and a man in the grand crime tradition of "guy who gets to come along...for some reason." In my experience reading period crime fiction from the UK and Ireland, people are always blithely obstructing justice* so nobody…