One of the earlier Luxembourger settlements in Minnesota, Elba is home to St. Aloysius Roman Catholic Church. The parish served Luxembourgers in surrounding communities until they built their own churches. While I can find little information on the church's history, the parish is easy to contact: visit their website at http://www.borromeochurch.org/ for more details. Find A Grave has an extensive cemetery listing. Hopefully you'll find what you need. And if you're from the area, I'd love to hear more.