Mortuary rituals are compared and contrasted in order to better understand social interaction between the Tucson Basin Hohokam of southern Arizona and the Trincheras tradition populations of northern Sonora. This interaction is explored through the examination of ideas about personhood and embodiment, and their relationship to the biological profiles and posthumous treatments of individuals during the Hohokam Classic period (AD 1150–1450) and the occupation of Cerro de Trincheras (AD 1300–1450). In both areas, cremation was the main burial custom, and both groups had complex, multistage cremation rituals, in which burning of the body played only a small part. Examination of rich archaeological data and well-excavated contexts at these sites revealed remarkable similarities and differences in body treatment during the mortuary ritual. Tucson Basin Hohokam mortuary practices suggest a stronger connection to, and remembrance of, the deceased within smaller social groups. In contrast, mortuary practices at Cerro de Trincheras emphasize similarities among the various cremated individuals, with rituals directed more toward the broader social group. Results suggest that the two groups were fundamentally similar in how they treated the bodies of the dead during the cremation process, but different in how the dead were remembered and commemorated.