The Harmonized HRS Life History is an age-sequenced collection of variables derived from the HRS Life History Mail Survey (LHMS), which was first conducted in 2015 and has been followed up with subsequent waves. Using the Harmonized ELSA and SHARE Life History data as a model, Harmonized HRS Life History defines variables as identically as possible with other Harmonized Life History data. Documentation for each variable in Harmonized HRS Life History, including a description of its creation, the HRS variables used, and descriptive statistics, is detailed in the Harmonized HRS Life History codebook. Harmonized HRS Life History codebook.