Walter James Bolton was born on August 13, 1888, in the small farming community of Mangamahu, about 50 kilometers from the city of Wanganui on New Zealand’s North Island. A polite child, he went to work on a local farm after finishing school, as many young men did at the start of the 20th century. In 1913, at age 25, Walter married Beatrice Mabel Jones. The couple settled in Wanganui, a city at the mouth of the Wanganui River, New Zealand’s longest navigable waterway.

Beatrice had three sisters: Lilith, Evelyn, and Florence. Life was initially good for the couple, but Beatrice was devastated when her sister Lilith died young. The cause of death was never established. Lilith left behind an infant daughter named Leone, who was raised by another sister, Florence.
Florence herself suffered tragedy when her first husband was killed in World War One. She later remarried a man named William Doughty, who died of a heart attack in 1953, leaving her a widow for the second time. Walter also faced personal hardship. His brother Thomas, described as feeble-minded, was institutionalized and eventually resided in an Auckland mental hospital until his death in 1934.
His sister was also admitted to a mental institution due to chronic schizophrenia. Walter and Beatrice had six children together: two daughters named Grace and Constance, and four sons named James, Francis, Alan, and one other. Throughout the marriage, Beatrice suffered from poor health. In 1924, she was diagnosed with diabetes and later developed a persistent skin irritation.
For several years, she also experienced severe abdominal pains and vomiting. In 1928, Walter was hired to manage a farm property known as Russell Farm, about eight kilometers outside Wanganui. Life there demanded daily dedication, from tending livestock to working the fields, but the Boltons became an integral part of the local community, earning respect through their work ethic. Beatrice’s health continued to decline.
On December 2, 1954, she contacted a doctor describing abdominal pains and severe indigestion. The cause was unclear. A gallbladder problem was suspected, but an x-ray ruled it out. Over the next ten months, she suffered recurring bouts of vomiting and stomach pain.
A specialist eventually removed her gallbladder, which seemed to help at first, but the symptoms returned. Walter then agreed to have Beatrice transferred to a private hospital. Although he was not wealthy, he used the couple’s life savings to fund her treatments. When she returned home, her sister Florence moved in to help.
Beatrice’s condition did not improve, and she continued to suffer severe abdominal pain and vomiting. Eventually, she fell into a coma and was urgently readmitted to the hospital. Beatrice Bolton died on July 11, 1956. Doctors found it difficult to determine the cause of death and asked Walter for permission to conduct a postmortem.
He agreed, telling them that after spending all his money on his wife’s treatment, he wanted to know what had caused her death. The postmortem revealed that Beatrice had been poisoned with arsenic. Detective Sergeant Burton Bevage broke the news to Mr. Bolton and, along with another officer, conducted a brief search of his property.
They discovered a packet of Young’s Improved Sheep Dip, which was marked as containing arsenic poison. Sheep dip is a liquid solution containing insecticide and fungicide used by farmers to protect sheep from external parasites such as itch mites, blowflies, ticks, and lice. When questioned about it, Walter told officers that his grandson had used it to put on possum skins. Interest in the case grew rapidly in the press and among the public.
Detective James Murray was sent from police headquarters in Wellington to lead the inquiry. There were rumors that Mrs. Bolton had kept a diary. This was confirmed by the wife of one of her sons, who told police that one entry read, “Now I understand what one means by saying they are brokenhearted.
” Detectives were unable to find the diary, and when Walter was questioned about it, he denied it had ever existed. Police speculated that he had probably destroyed it. Detectives developed a theory based on discussions with Florence Doughty. They identified a common factor in Beatrice’s vomiting episodes: tea prepared and served by Walter.
Authorities believed Walter had been lacing the tea with sheep dip poison found on the farm. They noticed that during periods Mrs. Bolton was in the hospital, she did not experience vomiting, yet upon returning home, she always began to feel unwell. The police focused on finding a motive.
That became clear when Florence came to the police station and made a statement. She confessed to having conducted an intimate relationship with Walter, which she said had started after her husband’s death. She said she was often short of money and that Walter would help her financially. She estimated he had spent around 250 pounds on her, paying for a range of items including carpets, and covering maintenance and plumbing bills.
She said he had also given her small amounts of cash when she needed it. Florence said she had remained silent about the relationship to avoid causing a rift with her sister, who she claimed was never aware of her husband’s infidelity. She also said the relationship had stopped some time ago. Police believed they now had their motive: Walter poisoned his wife because he wanted to be with her sister.
On Saturday, September 22, 1956, officers arrested Walter James Bolton and charged him with the murder of his wife. The trial began on November 26, 1956, at the Wanganui Supreme Court. The case had attracted wide attention, and the courtroom was full. Capital punishment for murder had been abolished in New Zealand in 1941, but the succeeding National government had reinstated the death penalty in 1949.
If found guilty, Walter Bolton could be hanged. The prosecution presented a narrative of premeditated poisoning, introducing the sheep dip containing arsenic found on the farm. Medical professionals testified about Beatrice’s symptoms and the presence of arsenic in her organs. Their expert analysis pointed toward intentional poisoning rather than accidental ingestion.
The defense contended that the prosecution had failed to establish that the defendant murdered his wife. Their theory proposed an alternative explanation for the arsenic poisoning. They argued that the sheep dip pit at the farm contained arsenic which leaked into the water supply, contaminating the Bolton family’s drinking water due to the pit’s proximity to a fresh water source. The defense suggested that Beatrice’s prolonged exposure to a small amount of arsenic, combined with her already weakened state, resulted in her severe symptoms.
They informed the court that tests had been conducted on the drinking water and that traces of arsenic had been found, including in water from one of his daughters’ homes, although the level was deemed too low to cause immediate concern. The prosecution argued that medical evidence indicated Beatrice had received a large dose of arsenic on the day before she died. The defense emphasized the long-term exposure theory, while the prosecution relied on the notion of a significant dose preceding her demise, rejecting the possibility of accidental ingestion. The testimony that caused the most reaction in court came from Beatrice’s sister, Florence Doughty.
She revealed that she had been engaged in an improper relationship with her sister’s husband. She also told of how she had moved to the farm to assist Beatrice and that after her death, she destroyed her sister’s diary at Walter’s request. The trial lasted nine days. After closing arguments, the jury retired to deliberate.
They returned a verdict of guilty after just two hours and ten minutes. When the judge asked Mr. Bolton if he had any reason why the death sentence should not be pronounced, he replied, “I plead not guilty, sir. ” The judge then sentenced him to death.
Not everyone believed he was guilty, and some questioned whether the justice system had delivered a fair verdict. An appeal was filed by the defense team, but the decision was upheld. On February 18, 1957, Walter James Bolton was executed at Mount Eden prison. Following the trial and the hanging, public opinion turned against the use of capital punishment, and in 1961, it was once again abolished in New Zealand for the crime of murder.
Many people at the time believed Walter James Bolton to have been innocent of the crime for which he was hanged. His sister-in-law Florence died a few years later from her own hand, and some say that before her death, she admitted to the murder of not only her sister Beatrice but others as well. Although there is nothing to substantiate this claim, the question still remains: on February 18, 1957, did New Zealand execute an innocent man?