Monsignor Fenton does not need to be explained, he does the explaining. The below articles are over 90% Fenton. I don't explain him in the articles so much as just letting him present authoritative teachings which HE explains. And he is as clear is possible. It would be difficult for any intelligent person to carefully read him and understand him.
Anyone who is sincere and truly wants to get to the bottom of the issue. Will read the following. Those who believe Father Fenton errs will be able to refute him with properly interpreted authoritative sources. But the below are for those opened to truth not those who have irrevocably already decided the issue in their minds and will disagree over and over again, while ignoring and misrepresenting things they cannot refute:
http://www.dailycatholic.org/2013ftt.htminstallment 87: The Allocution: Singulari Quadam
installment 86: The Decree for the Jacobites: Cantate Domino
installment 85: The Dogmatic Decree on Salvation: Unam Sanctam
installment 84: The Dogma of Salvation and the Fourth Lateran Council
installment 83: The Dogma of Salvation in Official Pronouncements of the Church
installment 82: Some Sources of Misunderstanding
installment 81: Introduction to The Catholic Church and Salvation
installment 80: Father Fenton's "The Use of the Terms Body and Soul with Reference to the Catholic Church
installment 79: Definition of Faith for the Dogma Extra Ecclesiam Nulla Salus
installment 78: No Salvation Outside the Church
installment 77: Membership In and Visibility of the Church
installment 76: Definitive Definition of the Mystical Body of Christ
installment 75: On the Mystical Body of Christ