I am looking for any information on a Robert H. and Cora Delphine Maynard Gifford of Boone, Boone Co., IA. They had 6 (possibly 7) children all born in IA. Robert H. was supposedly born in 1846 in Boone, Boone Co., IA and Cora was born there also in about 1850. My great great grandmother Cora Adell ("Garbo") was their daughter. She was born March 20, 1880 in Pilot Mound, Boone Co., IA. Other purported children were: Emily, Charlotte, Ira, Alma, Olive, and Florence.