Please, can anyone help shed some light on the genealogy and/or personal history of Michael R. Campbell and/or his family. He was my great, great grandfather and was born in Maryland on February 14, 1840, and died in Tullahoma, Tennessee, on January 17, 1916. He was first married to Mollie J. Marshall O'Rear on September 2, 1868, and they had two sons, William and Aaron. Mollie J. was the sister or W. A. Marshall and the widow of a Mr. O'Rear. After her death, Michael R. Campbell then married Mary Ransom and they had nine childred together. I know very little about this part of my family and any help will be greatly appreciated. Thank you in advance for any and all information. Joan