Spencer Coulter was the son of Mark Coulter and Nancy Taylor, born about 1827. Mark Coulter was born in North Carolina about 1773, and moved with his family to Washington County, Kentucky, before 1810. On December 20th of that year Mark married Nancy Taylor. Mark and Nancy Coulter had 6 children: Henson, Rutha, Starling, Spencer and William.
Spencer Coulter married Minerva Jane Casteel June 18, 1844. They had 8 children: Nancy A., William S., Andrew McHenry, Elizabeth, Samuel P., James R., Milly A. and an unnamed infant who died at birth.
In the 1860 Washington County census Spencer and Minerva are listed with children Nancy, 14, William, 12, Andrew, 8, and Samuel, 4.
In 1870 they are listed with Henry (Andrew), 19, Elizabeth, 18, Samuel, 13, and James, 8. Daughter Nancy married Henry W. Scott June 2, 1864. Son William married Amanda Jane Sutton in 1865.
In 1880 Spencer and Minerva are listed with son James, 19, son Samuel, 23, with his wife, Amanda J, 24, and granddaughters Octavia, 2, and Laura, 1.
Spencer Coulter died June 22, 1892, and was buried in Hillsboro Church Cemetery. He lived his entire life in Washington County, Kentucky.