Marcel Callo
French typographer (1921–1945)
Feast: 19 March (not on the universal Roman calendar; kept in the Roman Martyrology or local calendars)
Who they were
Marcel Callo was born at Rennes on 6 December 1921. Apprenticed to a printer at thirteen, he combined his work with scouting.
During the war, in forced labour, he comforted his exhausted fellow prisoners in the faith, and for this he was sent to the camps. He died of privation at Mauthausen on 19 March 1945, not yet 24, and his body was burned in the crematorium.
The miracles
As a martyr, beatified without a miracle.
Why that counted as sanctity
A young worker who kept up his companions' faith under Nazi forced labour and died for it.
The cause
The cause continues. No postulation address is published here yet. Favours received through this person’s intercession, and offers of help, are best sent to the religious order or congregation they belonged to, or to the diocese where the cause was opened; either will pass them to the postulation.
- Dicastery for the Causes of Saints - biography: Marcel Callo
- Wikidata Q568827 — dates, feast day and identifiers (CC0)
- English Wikipedia — Marcel Callo (CC BY-SA)
Checked against the sources listed on 21 September 2026. Corrections welcome.