Elizabeth (4) Emmet, along with her older sister Margaret (3) and brother Robert (2), was born in Dublin. She accompanied her mother Jane (Patten) to Scotland, joining her father Thomas (1) Addis Emmet (TAE) there during his imprisonment. In a letter home, her father described her as "a beautiful child with a good disposition," and "a fascinating child with more talents than most." She too went with her parents to Holland and then to Paris when the prisoners were released from the Ft. George prison in 1802, arriving in New York in 1804 with her family when TAE realized he was never going to persuade Napoleon to help the Irish overthrow the British.
On Nov. 27, 1819, in Grace Church, Elizabeth (4) married William Henry LeRoy, the son of Herman and Hannah (Cornell) LeRoy. The LeRoys were Huguenots who had been forced to leave France when the Edict of Nantes was revoked in 1685. They spent some years in Holland before coming to New York in 1753. Herman's father, Jacob married Cornelia Rutgers within a few months of his arrival and went into business with his brother-in-law Anthony, setting up a ropewalk on Pearl Street near what is now the South Street Seaport. All of Jacob LeRoy's family moved north to Dutchess County during the British occupation, but then came right back to the city when the war ended.
Elizabeth was a musical person and taught her younger brothers and sisters to play the piano. She also had an unusual talent for art, constantly drawing and painting as a child. A year after her marriage to LeRoy, the couple moved 400 miles north to Potsdam, NY, where they ran a stock farm for fourteen years. Elizabeth was the first of the Emmet children to leave home and break up the family unity. Her father, TAE, wrote her long consoling letters to mitigate her sorrow at being so far away, reminding her how much her mother Jane had suffered when she had left Ireland in 1800 to join her husband in prison in Scotland, realizing that she would probably never see family and friends in Dublin again.
Once in New York, Elizabeth (4) became a friend and pupil of Robert Fulton's, (who had came to know the Emmets in Paris) and she later painted a portrait of him which now hangs in the NY Historical Society. Her artistic talent was remarkable, she was an accomplished portrait painter throughout her adult life. She learned French while the family lived in Paris and maintained a fluency in the language. When the LeRoys returned to live in the City in 1834, Elizabeth got involved with a number of charities, working with her sisters and her brother Tom's(6) wife, Anna Riker (Tom) Emmet. The LeRoys had seven children, only two of whom lived to be adults: Susan died at age 22, Elizabeth at age 16, and three little ones died very young - one aged 18 months, one at 2 years 2 months and another at 3 1/2. These tragedies made Elizabeth especially sympathetic to her brother John who lost a son when the child was eight.
The LeRoys eventually moved to New Rochelle, where Elizabeth died of old age on December 31, 1878. She is buried with her husband, who died ten years later, in the Beechwoods Cemetery in New Rochelle, NY.