Jones, Bill; Lewis, Ronald L. (May 2007). "Gender and Transnationality among Welsh Tinplate Workers in Pittsburgh: The Hattie Williams Affair, 1895". Labor History. 48 (2): 178. doi:10.1080/00236560701224890. S2CID145212902.
Jones, Bill; Lewis, Ronald L. (May 2007). "Gender and Transnationality among Welsh Tinplate Workers in Pittsburgh: The Hattie Williams Affair, 1895". Labor History. 48 (2): 178. doi:10.1080/00236560701224890. S2CID145212902.