On this day in 1869 David Hennessy Sr. is killed in a New Orleans coffeehouse on St. Anne Street. He was a “Special Officer” of the Metropolitan Police Force. Hennessy Sr. was father to later murdered Chief of Police Hennessy Jr. in 1891 and was a Union soldier who spent his time in Union occupied New Orleans during the Civil War.

He decided to stay in New Orleans after the war and during Reconstruction.

His position didn’t endear him to locals and he is killed in an argument (though details are sketchy) by a Confederate sympathizer.

On this day, February 27, 1869, David Hennessy Sr., a Special Officer with the Metropolitan Police Force of New Orleans, was shot and killed inside a coffeehouse on St. Anne Street. The circumstances surrounding his death remained somewhat murky, but what is known is that Hennessy Sr. fell victim to the bitter tensions that continued to simmer in New Orleans long after the guns of the Civil War had fallen silent. His killer was believed to be a Confederate sympathiser, a man harbouring deep resentment toward the Union presence that still occupied the city during the turbulent years of Reconstruction.

Hennessy Sr. had arrived in New Orleans as a Union soldier during the war, one of many Northern men who found themselves stationed in a city that bristled with hostility toward Federal authority. Rather than return north when the fighting ended, he chose to remain, carving out a career in law enforcement during one of the most volatile and lawless periods in American history. New Orleans during Reconstruction was a powder keg of racial violence, political corruption, and factional bloodshed, and men who aligned themselves with Union-backed institutions wore a target on their backs.

His decision to stay and serve in the Metropolitan Police Force, itself a Reconstruction-era creation deeply unpopular among the city's white Southern population, made him a marked man in certain quarters. The argument that ended his life in that St. Anne Street coffeehouse was likely more than a simple personal dispute — it was a reflection of the wider war of attrition being waged against Federal authority in the occupied South.

The killing of Hennessy Sr. takes on an added layer of historical significance when one considers the fate of his son. David Hennessy Jr. would grow up to become Chief of Police of New Orleans, a formidable lawman who waged a relentless campaign against the Sicilian criminal organisations operating in the city. In October 1890, Chief Hennessy Jr. was himself gunned down in the street, an assassination widely attributed to the Mafia and one that sparked a chain of events — including the infamous 1891 lynching of eleven Italian immigrants — that reverberated through American organised crime history for decades to come.

The two Hennessys, father and son, each met violent ends in the same city, both casualties of the brutal conflicts that shaped New Orleans and, ultimately, the criminal underworld that would one day give rise to the American Mafia itself.