Inspector Thomas Littlejohn series by George Bellairs

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The collection is incomplete, but this is all I could find.

The Books

Thomas Littlejohn, a police inspector, later Superintendent, mostly in England:

Miss Tither, the village busybody, is not the best-loved resident of Hilary Magna. She has made many enemies: bombarding the villagers with religious tracts, berating drunkards, and informing the spouses of cheating partners. Her murder, however, is still a huge shock to the Reverend Ethelred Claplady and his parish. Inspector Littlejohn's understanding of country ways makes him Scotland Yard's first choice for the job. Basing himself at the village inn, Littlejohn works with the local police to investigate what lay behind the murder. A second death does little to settle the collective nerves of the village, and as events escalate, a strange tale of hidden identities, repressed resentment, religious fervour and financial scams is uncovered. Life in the picturesque village of Hilary Magna proves to be very far from idyllic.

The books in suggested reading order
Death of a Busybody
The Dead Shall be Raised and The Murder of a Quack
Calamity at Harwood
Death in the Night Watches
Death on the Last Train
The Crime at Halfpenny Bridge
He'd Rather Be Dead
The Case of the Seven Whistlers
Outrage on Gallows Hill
The Case of the Demented Spiv
The Case of the Famished Parson
The Case of the Headless Jesuit
Dead March for Penelope Blow
Crime In Leper's Hollow
Death in Dark Glasses
Half-mast for the Deemster
A Knife For Harry Dodd
Corpses in Enderby
The Cursing Stones Murder
Death in Room Five
Death Drops the Pilot
Death Treads Softly
Death Sends for the Doctor
Corpse At The Carnival
Bones in the Wilderness
Toll the Bell for Murder
Death Before Breakfast
Death in the Fearful Night
Death Of A Tin God
The Tormentors
Death of a Shadow
Intruder in the Dark
Death in Desolation
The Night They Killed Joss Varran
Murder Adrift
Devious Murder
Fear Round About