I used to add anyone who donated to the database. How else do you issue a receipt at the end of the year?
There was a pharmacist who travelled from town to town in our province, replacing colleagues while they were on holidays. He registered with us, requested a box of envelopes, and was a faithful donor when in town. Never asked him if he was Catholic or not.
My non-Catholic husband was on the parish list. He also sang with the choir for a couple of years. He certainly could have been an usher if he’d wanted to be. He couldn’t have become a reader, EMHC, or catechist.
I’m old enough to remember the annual “visite paroissiale” (parish visit) the period in the spring when Fr. would go visit every household in the parish. He knew exactly how many parishioners he had. Today, registration has replaced that visit but few people actually register when they move into the parish. It’s complicated by the fact that we serve the military Base as the military no longer provides a Catholic Chaplain. Today, when the diocese’s annual questionnaire comes around it’s a very uneducated guess how many Catholics we have in the parish. I used to rely on the most recent census but they no longer ask that question. We had one priest who would put down 50% of the population, but that was wishful thinking since the two largest ecclesial communities in town are the Pentecostals and the Salvation Army, not the Catholics. We were about 20% of the population. Of the approximate 1500 members, we regularly see about 150 each week.