Bishop Ireland, otherwise a very wise and dynamic leader, formented against married Greek Catholic Priests. It seemed a scandel to him and to other RC clergy. But to the Greek Catholics it was quite normal to have married priests. Our priest, for example, is a grandson of a Greek Catholic priest. In fact his anscestory goes back for 300 years of married priests. Finally, in 1929 the Vatican banned all married priests for the Greek Catholics. Overnight 1/2 or more of our Churches disappeared along with their priests. Where did they go? They created a large and growing Orthodox Church in Pa. which is today nation wide.
Why, you may ask, should Greek Catholics be allowed to ordain married men when Roman Catholics aren’t usually supposed to? It’s simple. When the Orthodox Churches that came back into communion with Rome agreed to come back one of the written stipulations was that the Greeks or Eastern Catholics would always be allowed to ordain married priests just as they always had. It Europe this agreement was kept. In America the agreement was abrogated. Yet in the 1990s Pope John Paul II reversed the 1929 decision. We are slowly bringing back the practice.
For more information go to the forum at byzcath.org where it is discussed from time to time. It has been discussed here as well.