Final answer:
The individual responsible for the discovery of the practice of burying the dead under homes in both settlements was not mentioned in the provided material. Instead, archeological and anthropological research at a Jewish cemetery provided insights into burial practices and the aftermath of an attack on the community.
Step-by-step explanation:
The individual that revealed it was customary at both settlements for the dead to be buried under homes was none of the above based on the provided reference material. The provided excerpts do not mention such a practice or individual directly associated with the discovery. Instead, they describe how Archaeological and Anthropological analyses of communal graves have allowed the reconstruction of events and the understanding of burial practices, such as the orientation of the graves and the treatment of the bodies within a Jewish cemetery during a period of unrest.
The burials adhered to Jewish ritual, with a notable care taken by what is presumed to be surviving members of the affected Jewish community in arranging the corpses. This would suggest a different community practice than the one suggested in the question. The focus on the archaeological and anthropological evidence points to a detailed analysis of the burials and the conditions surrounding them, such as the presence of traumatic injuries and the demographics of the deceased.