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.