Info from a findagrave contributor:
Mary Livingston (Fulton) Ludlow, wife of Robert Morris Ludlow, was the youngest daughter of Robert Fulton, the inventor of the first steamboat, and his wife Harriet (Livingston) Fulton, who was the daughter of Walter Livingston, a descendant in the fourth generation of Robert Livingston, First Lord of Livingston Manor, the lordly domain in Columbia county, granted him by his sovereign. The line of descent is as follows :• Rev. John, Robert, Philip, Robert, all of whom will be found elsewhere in this work.
Mary Livingston (Fulton) Ludlow was the youngest daughter of Robert Fulton, the famous inventor. The Fultons are an Irish; family, descendants of Scotch ancestors. The American line follows Robert Fulton, who came to America from Kilmeny, Ireland. He settled in the township of Little Britain, Lancaster county, Pennsylvania, in the town, now city, of Lancaster. Here he became prominent. He was one of the founders of the Presbyterian church; charter member of the Juliana Library, the third library established in America, and interested in all departments of town life. August 23, 1759, he bought a brick dwelling on the northeast corner of Penn Square, afterward Center Square, where he lived until 1765. He had purchased a farm in 1764, containing three hundred and ninety-four acres, on Conawago Creek, towhich he removed in 1765. He wasnot successful as a farmer and soon returned to Lancaster. During the period on the farm his afterwards famous son, Robert, was born. In 1844 the township of Little Britain was resurveyedi and a new township erected and called "Fulton" in honor of the inventor. Not long agothe present owner rebuilt the Fulton farmhouse, but preserved some of the old features,. the original fireplace and the room in which the inventor was born. Robert Fulton, father of the inventor, married Mary, daughter of Captain Joseph Smith, and sister of Colonel Lester Smith.
SOURCE: Hudson-Mohawk Genealogical and Family Memoirs: A Record of ..., Volume 1., edited by: Cuyler Reynolds.
Robert Morris Ludlow
wife of Robert M & youngest daughter of the late Robert Fulton, Ae 47