"They gather regularly to mourn what was..."? Please. What you mean by "what once was"  is the awful period of modernism and liturgical abuse so ripe since the end of Vatican II--at least until this parish finally got a priest who knew what the hell priests--and Catholics--are supposed to do and believe. The people who truly "mourn what once was" are those who are familiar with the 1900 years of traditional Catholicism that was swept aside by the Rahners, Kungs, and Ratzingers of Vatican II. Calling the "exiles" "cradle Catholics" is to wonder in whose cradle these liturgical scientists were raised. Sadly, most of them--at least those who grew up after VII anyway-- probably don't know any better. And this new priest, and those who truly know their faith, don't want to go nearly as far back as the "16th century"; October 9th, 1958 is far enough.