In addition to reference data derived from experiments, each YAML file stores calculated heats of formation (298 K, including calculated AECs) for various levels of theory, including those discussed in this work, with the plan of extending to additional LOTs in a subsequent publication. In this way, the YAML files contain enough information to fit and re-fit bond additivity corrections or to perform isodesmic reaction calculations using any of the species in the reference database. The YAML format is chosen as a way to store the data in a human-readable and writable manner while also allowing the data to be read in as native RMG objects in Python. Adding data to these files therefore can also be done using the RMG and Arkane API, which contains useful functions for common tasks such as adding in data from quantum chemistry calculations for a new level of theory.