She was an inventor, filing various patents with the proceeds to go to charity. In 1904, she patented a method of obtaining ice-cooled water from a spigot installed into an ice-box refrigerator, and in 1914, a gauge to show how much ice was left without having to open the ice-box. She also invented a sleeping bag that doubled as a garment, said to have been used in World War I.
Shortly after her husband died in 1899, Mabel had her brother Paul Hunt design a 40-room mansion for her at 1071 Blue Hill Avenue in Milton. The mansion "Pine Bank" was built on their father's estate which was bounded by Brush Hill Road, Blue Hill Avenue and Atherton Street. She had inherited an undivided interest in the family estate in Milton, and afterward acquired the whole title therein.
After her husband Horatio's death Mabel fought in the court for 10 years to inherit his estate, estimated at over $10,000,000, which had been left in a trust. Between about 1904 and 1912, she had engaged in an ultimately successful legal effort to prevent the sale of the Slater Mills in Webster by the trustees of her husband's estate, seeking to preserve the mills under family control for the benefit of her four children.
In 1927 she moved to Webster and sold her estate in Milton.
She was an energetic arbitrator of disputes between employees and management of the Slater Mills in Webster Mass. At her death in 1942 at age 78, her estate was worth $25,000,000. She had spent the last 12 years of her life at the Craig House Sanatorium in Beacon New York at the behest of her son H. Nelson Slater and her two daughters. Mrs. Slater was the subject of an unsuccessful custody battle on her behalf by her brother and sister.
She was an inventor, filing various patents with the proceeds to go to charity. In 1904, she patented a method of obtaining ice-cooled water from a spigot installed into an ice-box refrigerator, and in 1914, a gauge to show how much ice was left without having to open the ice-box. She also invented a sleeping bag that doubled as a garment, said to have been used in World War I.
Shortly after her husband died in 1899, Mabel had her brother Paul Hunt design a 40-room mansion for her at 1071 Blue Hill Avenue in Milton. The mansion "Pine Bank" was built on their father's estate which was bounded by Brush Hill Road, Blue Hill Avenue and Atherton Street. She had inherited an undivided interest in the family estate in Milton, and afterward acquired the whole title therein.
After her husband Horatio's death Mabel fought in the court for 10 years to inherit his estate, estimated at over $10,000,000, which had been left in a trust. Between about 1904 and 1912, she had engaged in an ultimately successful legal effort to prevent the sale of the Slater Mills in Webster by the trustees of her husband's estate, seeking to preserve the mills under family control for the benefit of her four children.
In 1927 she moved to Webster and sold her estate in Milton.
She was an energetic arbitrator of disputes between employees and management of the Slater Mills in Webster Mass. At her death in 1942 at age 78, her estate was worth $25,000,000. She had spent the last 12 years of her life at the Craig House Sanatorium in Beacon New York at the behest of her son H. Nelson Slater and her two daughters. Mrs. Slater was the subject of an unsuccessful custody battle on her behalf by her brother and sister.
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