Family journeys: geography and software credits

World outlines: Natural Earth, public domain, via world-atlas 2.0.2 countries-110m.json.
https://www.naturalearthdata.com/about/terms-of-use/
https://github.com/topojson/world-atlas

United States outlines: U.S. Census Bureau, public domain, via us-atlas 3.0.1 states-10m.json.
https://github.com/topojson/us-atlas

Town/county representative points: 2026 U.S. Census Gazetteer, rounded to two decimals.
https://www.census.gov/geographies/reference-files/time-series/geo/gazetteer-files.html
Specific source files and geographic identifiers are retained in journey-data.js.
State-only points are computed from the modern state geometry, not historical home addresses.
All boundaries are modern orientation guides. Neither markers nor arcs identify precise historical locations or routes.

D3 7.9.0: Copyright 2010–2023 Mike Bostock, ISC license (../vendor/d3-LICENSE.txt).
https://github.com/d3/d3
TopoJSON client 3.1.0: Copyright 2012–2019 Mike Bostock, ISC license (../vendor/topojson-LICENSE.txt).
https://github.com/topojson/topojson-client
Libraries and map geometry are hosted with this site. No tile service, geocoding API or tracking account is required.

Record images are the existing family-site source images, labeled as records. No generated or fictional portraits are used.