I am trying to find the parents and/or siblings of my great great grandfather Philander T. Giberson. He was born in Kentucky in 1833 and lived in Dayton Washington from 1869 until around 1890. He died in Tacoma Washington in 1904. According to census information, his parents were born in Pennsylvania. I found William L. Giberson living in Kentucky on the 1830 census. He is about the right age to be Philander's father, but from there the trail gets cold. Anyone have any suggestions?