Right, John. There is not an iota of a doubt that all these catechumens, as is invariably recorded for us by all ancient authors, as was universally believed by the whole Church concerning these Saints who were venerated for centuries precisely with the understanding that they died as catechumens baptized in their own blood for Christ. The Feeneyite suggestion to the contrary is a novelty. Another source on the same.
From the Roman Martyrology: "Saint Victor: At Braga in Portugal, of Saint Victor, Martyr, who while still a catechumen refused to worship an idol, and confessed Christ Jesus with great constancy; wherefore after many torments, he merited to be baptized in his own blood, his head being cut off. Victor of Braga Martyr (Red Martyr): Died c. 300. In his chronicle, Vasaeus records that Saint Victor was baptized by blood. The catechumen was beheaded at Braga, Portugal, under Diocletian for refusing to sacrifice to idols (Benedictines, Husenbeth)."
St. Emerentiana - (Feast is January 23). From the Roman breviary: "A Roman virgin, step-sister of the blessed Agnes, while still a catechumen, burning with faith and charity, when she vehemently rebuked idol-worshippers who were stealing from Christians, was stoned and struck down by the crowd which she had angered. Praying in her agony at the tomb of holy Agnes, baptized by her own blood which she poured forth unflinchingly for Christ, she gave up her soul to God."
St. Genesius of Arles, - From the CE: "A notary martyred under Maximianus in 303 or 308. Feast, 25 Aug. He is honoured as patron of notaries, and invoked against chilblains and scurf. The Acts (Acta SS., Aug., V, 123, and Ruinart, 559), attributed to St. Paulinus of Nola, state: Genesius, native of Arles, at first a soldier became known for his proficiency in writing, and was made secretary to the magistrate of Arles. While performing the duties of his office the decree of persecution against the Christians was read in his presence. Outraged in his ideas of justice, the young catechumen cast his tablets at the feet of the magistrate and fled. He was captured and executed, and thus received baptism in his own blood."
And the explanation of why the baptism of blood according to Tradition is even more glorious than the baptism of water,
(A compilation of writings from the Apostles and their immediate successors) "But let him who is vouchsafed the honour of martyrdom rejoice with joy in the Lord, as obtaining thereby so great a crown, and departing out of this life by his confession. Nay, though he be trot a catechumen, let him depart without trouble; for his suffering for Christ will be to him a more genuine baptism, because he does really die with Christ, but the rest only in a figure."