HI...My name is Betty Jane Hamman Hattan....Jacob P. Hamman was my grandfather...my father was Earl W. Hamman, his youngest son, who married Nellie Jewel Johnson. they had two girls Betty Jane Hamman Hattan and Judith Ann Hamman Hooper...Five grandchildren from there..and great grandson....I am so thrilled to find all this out. Will be more than happy to help you out and I would be ecstatic to receive the information you have. please get back asap.....Thanks Betty Hattan