Mercer came about because Denmark, Tennessee would not let the railroad come through, so the train bypassed Denmark. Mr. T. E. Mercer was riding his horse down the Big Black Creek one day when he came upon the new train tracks, he went back to Toone Tennessee, where he operated a store and told his son and his son-in-law that this was a perfect place for a town. His son-in-law, Mr. Franklin McGlathery, came and bought the land and in 1884 built a store building, then became the station master of the new train station. It was a perfect place for a town, you had the train, Big Black Creek, where flat boats were going up to Denmark, and the Estonallie Landing on the Hatchie River, just four miles away. Steam boats were coming up the Hatchie from Memphis and St. Louis. It was a main trading post for cotton buyers. There were two hotels at Estoallie, (Chickasaw word, meaning, "Here We Cross." It was on the Estonallie Trail from North Carolina. Mr.Glathery built his new home in 1888, it has been restored. Just across the street from the house is the Ebenezer Cumberland Presbyterian Churches, one of the oldest in West Tennessee, this building was built in 1910, it is no longer a church and is owned by The Big Black Creek Historical Association. It has been completely restored.