



Dr. Guadalupe Vanderhorst Rodriguez, D.Ac, L.Ac

Research & Archives
Discovering Historical Evidence. Preserving Ancestral Knowledge. Advancing Genealogical Research.
Every Historical Record Holds a Fragment of the Past. Together, Those Fragments Help Us Understand the Lives of Our Ancestors.
History is preserved through evidence—handwritten documents, land transactions, court proceedings, census records, family correspondence, historical maps, and the memories carried across generations.
At Tann Family History, our Research & Archives division is dedicated to identifying, examining, documenting, and preserving historical materials that illuminate the origins of the Tann family and related ancestral lineages.
Our investigations extend beyond traditional family trees to explore the historical circumstances that shaped ancestral lives, including Indigenous history, colonial settlement, migration, property ownership, legal classifications, and family relationships.
We believe that responsible genealogical research requires more than discovering an ancestral name. It requires understanding the historical world in which that individual lived.
Through careful examination of documentary evidence and historical context, we seek to contribute to a more complete understanding of family history and its place within the larger American historical experience.



