I’m not very familiar with this author, but her story lines up exactly with the mystical visions of Blessed Anne Catherine Emmerich concerning the Holy Family and the early life of St. Dismas. It also coincides with St. Augustine’s assertion that Dimas had encountered Jesus before that fateful day on calvary, although the details in his story varied a bit from Emmerich’s vision. St. Robert Bellarmine, St. Peter Damian and other Saints referenced St. Augustine’s claim, so it’s hardly more than idle chatter, but you can take it or leave it. At any rate, this is his legend in the form of a beautiful story by Pauline Sanders.