拉薩爾縣
Immigrant Joseph Cotulla, who was reared in Silesia, then a part of Prussia, migrated to the United States in the 1850s. He joined the Union Army in Brownsville, Texas. He lived in Atascosa County, but arrived in La Salle County in 1868 to establish what became a large ranching operation. After learning that the International-Great Northern Railroad intended to lay tracks in La Salle County, he worked to establish the town that bears his name.