All of the data in ChicagoAncestors is sorted into one of the following topics. Examples of the type of data that might be included under a topic are provided in parenthasis.
- Arts, Entertainment & Sports (theaters, arenas, clubs, etc.)
- Buildings & Structures (houses, skyscrapers, bridges, etc.)
- Crime (homicides)
- Education (libraries, schools, museums, etc.)
- Geographic Areas (community areas, wards, etc.)
- Groups & Organizations (clubs and fraternal organizations)
- Historical Events (events such as the Eastland disaster, Century of Progress, etc.)
- Individuals & Families (you and your family, as well as famous individuals and families)
- Photographs & Images (photographs, drawings, maps, etc.)
- Public Spaces (parks, cemeteries, plazas, etc.)
- Religious Institutions (churches, mosques, synagogues, temples, etc.)
- Transportation (railroads, harbors, airports, etc.)