Mike, I have been in umpteen threads about this and have studied it thoroughly. My intention was just to fade out here, but since you are always so kind to me, I thought it might be worth another look.
I went to confession today to confess that some of these posts trigger anger and disturb my peace. Father said, why bother? and added a few other words of counsel. St. Faustina stated in several places in her Diary that Our Lord told her to always follow her confessors, for He in fact is speaking to her through them. When I came home, it was no small coincidence that I heard a similar reply from John Martignoni on my tape of this week's EWTN Web of Faith (which will air again this afternoon at 4 PM)
He said that we do not change or convert people, but simply plant the seeds, hoping they will not fall on the footpath or rocky ground. Then pray and leave the job to the Holy Spirit. Good advice!! I digress.
Maybe you already know this, but Pius XII's letter to the Boston Bishops formed the basis for article 16 in V-II's Lumen Gentium, Ch. II,
"Those also can attain to salvation who through no fault of their own do not know the Gospel of Christ or His Church, yet sincerely seek God and moved by grace strive by their deeds to do His will as it is known to them through the dictates of conscience." (19*)
The footnote (19*) reads: Cfr. Epist. S.S.C.S. Officii ad Archiep. Boston.: Denz. 3869-72.
Article 848 of the CCC references footnote 337, which gives the very same quote. Those who, through no fault of their own, do not know the Gospel of Christ or his Church, but who nevertheless seek God with a sincere heart, and, moved by grace, try in their actions to do his will as they know it through the dictates of their conscience - those too may achieve eternal salvation.
337 LG 16; cf. DS 3866-3872.
Pius XII intervened when Fr. Feeney was circulating EENS material, and he finally was chastised. It was a well-known controversy that some who adhere to "feeneyism" still fight over, since many do not believe in baptism of desire, etc., even though the Church teaches the possibility, even before V-II.
It is THIS that underlies the teaching of LG, which does not negate Pope Eugene, since he was not addressing pagans who had never heard the gospel, but those who heard it and rejected it. His teaching is true, as is V-II's LG.