WASHINGTON (AP) — Anthropologists from the Smithsonian have been analyzing the remains of 16 ancestors buried in the 1800s who were related to the Shriver family that more recently included a sister to President John F. Kennedy.

The human remains had been buried in a historic tomb at Washington’s Congressional Cemetery that was in danger of collapse. They will be reinterred Wednesday in a renovated tomb after a memorial service with members of the Shriver family.

Smithsonian anthropologists plan to release their findings looking at what life was like for people in the nation’s capital in the 19th century.