Do constitutions have a heritage? A lineage you can trace back in time, not unlike a family tree? In this third of three episodes exploring the Constitute project with Zach Elkins and Robert Shaffer we turn to a discussion of data. Zach talks about creating machine-readable data, Google knowledge graphs, and being a political science data pioneer. Then we look to the future, and explore how collaborative technology is working to improve the process and quality of group writing. Robert and Zach talk about the rewards that come with the outreach component of their work, and we close with a look at the Spanish version of Constitute.