This study examines the impact of the citizens of the La Reunion colony on the development of Dallas and Dallas County. The French, Belgian, and Swiss families that formed the utopian colony broughta blend of European culture and education to the Texas frontier in 1853. The founding of La Reunion and a record of its short existence is covered briefly in the first two chapters. The major part of the research, however, deals with the colonists who remained in Dallas County after the colony failed in 1856. Chapters three and four make use of city, county, and state records along with personal collections from the Dallas Historical Society Archives and the Dallas Public Library to examine the colonists effect on the government and business community. Chapter five explores the cultural development of the area through city and county records and personal collections.