Richard,I can't help you with your great-grandfather, but I can help you with your great-grandmother. She was the sister of my great-grandfather Warren Wesley Pearce. Her father was Alexander Southerland Pearce (1817-1899). Her mother was Martha Jane Wesley (1832-1904). Both lived in Lower Chanceford Township and South Delta, Pa., where they are buried. I can also provide you with names of her other siblings and tentative identification of her maternal grandparents.