This dataset gathers relevant bulk stable isotope values from the Stone Age sites at the Eastern Baltic to act as a baseline for the human values discussed in the article "Buried at home? Stable isotope analysis of the late hunter-gatherer cemetery population at Tamula, SE Estonia" (by Tõrv and Eriksson, EJA 27, 2; 10.3176/arch.2023.2.02). These data are gathered from published materials and are important in order to interpret the human values of the three sites - Tamula, Veibri, Zvejnieki - included in the cited study.