Combined with archival and osteological researches and radiocarbon dating, this study reports the provenance and chronology of the human skeletal remains of about 40 individuals derived from 11 Jomon or Epi-Jomon prehistoric sites in South and Central Hokkaido. They were found by 1960s and once deposited in Department of Anatomy, Hokkaido University School of Medicine. Update of information on age and sex for each individual is also a part of the present study. It confirmed that these skeletal remains were probably younger than previously documented. Although ¹⁴C date of human remains in this region show the marine reservoir effects through the marine resource consumption, a complicated oceanography around Hokkaido makes it difficult to estimate local reservoir ages (ΔR). Hence, we calculated two corrected ages for each specimen using local ΔR and another larger ΔR values, the latter of which was originated from East Sakhalin Current area from where seasonally migrated sea mammals travelled. The ranges of thus corrected ¹⁴C dates for the human remains were roughly consistent with but tended to be younger than those expected from the archaeological contexts or pottery chronology. Correction method for marine reservoir effects in human remains and pottery residues needs to be further discussed.