Mendel Rosenberg was a son of Samuel/Shmuel Rosenberg and Recha/Racha Rosenberg and had a brother named Shimon/Simon.

Evidence

Geoff Silverstein confirmed the family roles twice, most recently on 25 September 2026: Samuel/Shmuel was the father and Shimon/Simon was the brother detained with Mendel. S-121, S-088 and S-132 use the names in reverse. Because those published and family-derived accounts are not independent contemporary identity records, their role labels remain explicit contradictions rather than silently overriding the confirmed family identification.

People

Mendel Rosenberg, Recha Rosenberg, Shimon Rosenberg, Samuel Rosenberg

Places

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Family lines

Rosenberg–Šiauliai survivor line

Supporting sources

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Contrary sources

Mendel Rosenberg oral history, Beyond the Shoah - 5: Remembering Fort Knox Soldiers, Families affected by the Holocaust

What remains uncertain

Contemporary civil/vital records have not yet been reviewed. The reason the earlier oral-history and caption labels reverse the two names remains unresolved.