I just saw your post. I descend from Greenleaf Louderback.
I don't have much on this side of my family. Greenleaf had a son named Francis (Frank) M. Louderback, born around 1869. He married my ggrandmother, Olive Prather. They had one son, my grandfather, Harry Aporthpe Louderback, who was born in 1892 and died 1988. Harry married Naomi Caroline Gearing,and they had three daughters, my mother, Rita, and her two sisters, Ruth and Juanita. I have no information on Frank Louderback. I have run into a dead end with him as I can only find him listed on an 1880 census (he was living on a farm with his grandfather, Milford) and his marriage certificate. He and Olive were divorced, unknown year, and his whereabouts after that are unknown. My grandfather said he did see him one time while he was serving in WWI, and supposedly he died under unknown circumstances and unknown location and year.
Hope this may help some.