Posted on: Costilla County, Co Query Forum Reply Here: http://genconnect.rootsweb.com/genbbs.cgi/USA/Co/Costilla/10071 Surname: Tietjen ------------------------- Costillo County? I have an Ernest (Ernst) Albert Tietjen born abt. 1848 in Sweden, who emigrated to America and his family settled in Santaquin, Utah, then he finally settled in New Mexico..my mother was born in Valencia County, NM.. My grandmother was Emma C. Christiansen If interested, please contact me by email...dnooner@manti.com..