Jacob Cassairt in Goodspeeds History

And here is another direct ancestor, Jacob Cossairt (or spelled Cassairt here and other places) but his headstone has it spelled 'Cossairt' so we'll go with that as correct!
Jacob is related to the Harty's via his oldest child and daughter Mary Alice Cossairt. She married Alfred Jack Carnall. This is Alfred and Mary in later years of life. David Cossairt is also pictured with them. Their 2nd daughter was Cora Elsie Carnall, who then married Ruben Franklin Harty II, and the line flows easily from this point. Jacob is my 3rd great Grandfather.

1018 HISTORY OF SOUTHEAST MISSOURI

Jacob Cassairt, a native of Darke County, Ohio, was born January 3, 1834, and is a son of Francis and Mary J. (Phillips) Cassairt, natives of Ohio and Pennsylvania respectively. They were the parents of seven children, six now living: Jacob, Henry, Eliza, Sarah, James and George. Jacob Cassairt was reared in Illinois, and married Miss Hattie Alcorn, a native of Indiana, who bore him eight children: Mary, Perry, William, Ephraim and Charles (twins), Dora, Albert and John. The same year of his marriage, Mr. Cassairt went to Iowa, and from there to Kansas, and then came to Benton County, Mo., where he remained until after the war. In 1861 he enlisted in Gov. Phelps’ company of 100 day men, Company I, Eighty-first Missouri, and served until the close of the war. He was in the battles of Wilson’s Creek, Pea Ridge, Prairie Grove and Osage, where Gov. Marmaduke was captured. At Forsyth, Mo., his horse fell, and injured Mr. Cassairt’s leg and hip so severely that he now draws a pension. After the war Mr. Cassairt moved to Indiana, where he remained for eight years. In 1884 he came to Stoddard County, and bought 120 acres of land, eighty of which are under cultivation. He is a member of the Masonic fraternity, of which he has been a member for twenty-five years, is also a member of the Agricultural Wheel, of which he is president, and he and wife are members of the General Baptist Church.