Prehistoric cultural affiliation(s) include Palus Indians, Native Indian, Cayuse, Paleo-Indian, Cascade, Windust, Numipu, Wanapum Indians, Native American, Frenchman Springs and Windust Phase dating back to 10999 BC.
Some of the country's most noteable architects helped create the Franklin County places including Wilson,Lewis C.,Co., Union Bridge Co., Kelly--Atkinson Construction Co., Missour Valley Bridge & Iron Co., Earle E. MacCannell, Wilson,C. Lewis and & Co.. Prominent architectural styles found in Franklin Country are Late 19th And 20th Century Revivals, Mission/Spanish Revival and Moderne.