A New York State historical marker near the Michigan Street Baptist Church, where an archaeological survey is taking place. UB anthropology students can be seen digging at left.

State Assemblywoman Crystal D. Peoples-Stokes speaks to the group in front of the church last weekend.

The foundation of the home of Mary Talbert was uncovered.

Doug Perrelli, director of UB's Archaeological Survey, holds a piece of brick, likely from the home of Mary Talbert.

Doug Perrelli speaks with community participants Galinda Martin (left) and her granddaughter, Aaliyah Martin.

Galinda Martin (left) and Aaliyah Martin sift through soil.

The Martins then clean off the artifacts.

Galinda Martin (left), UB anthropology student Heather Lackos (center) and Aaliyah Martin chat while they work.

Joyce DiChristina looks at the place where former slaves hid in the church, a spot on the Underground Railroad.

A look inside the hiding place.

A sign near the site explains what's happening and what organizers hope to find at the site.