William K. Mosser, son of William, was born July 24, 1839, died Dec. 15, 1905. He owned the homestead after his father, the present Mosser's mill, and farm and an adjacent farm of 102 acres, these he cultivated to the time of his retirement. He was an esteemed citizen, and during his retirement he lived in a fine brick house, built by his father in 1839. He had been a successful potato-farmer. Dr. James Graber and he were instrumental in the erection of the Jacksonville creamery. He and Wilson P. Krum of Krumsville, operated slate quarries at Slateville, Williamstown, and Jacksonville. He had been a Lutheran member of the Jacksonville church, which he served officially from early manhood to the time of his death. He was married May 11, 1862, to Sarah, b. Sept. 4, 1842, daughter of Joseph and Maria (Wannemacher) Lutz.