Of course all these references were made prior to the New Testament's canonization. The primary method of evangelism and preaching was word of mouth since the "Good News" was not yet a published work.
Since the traditional church (Roman Catholic, in this case) was one of the chief preservers of Scripture through the ages, certainly they would have preserved reference to Mary's sinlessness if it existed? Where is the reference?
Pius IX 12/8/1854