What about Darryl?Justin Martyr, Irenaeus, Polycarp, Hippolytus, Origen, Tertullian - those are a few.
(They are deceased now.)
Later on there was Basil, his brother Gregory, and his other brother Gregory.
Seriously though, all this talk about a rock? Hmmm, I might want to get on that, lol
What about when 2 or 3 were gathered in His Name, was that not the beginning of the Church, since He was there with them?
What's the difference? The Holy Ghost was not given until the day of Pentecost had fully come.
So without the Holy Spirit, there really isn't a Church. I think this is a pretty good guideline ...