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At the core of the VGM+ project is the compilation and analysis of comprehensive data on the life course of US Civil War Union Army veterans originally collected during the Early Indicators of Later Work Levels, Disease and Death Project (EI Project).  The EI Project was initiated by Robert W. Fogel to investigate the effect of early-life conditions on later health and socioeconomic outcomes. Fogel led the project until his death in 2013, when leadership passed to Dora L. Costa. The project was first funded by the National Institute on Aging through a grant to the National Bureau of Economic Research in 1992 with the mandate to collect, digitize, and prepare for analysis records pertaining to long-term outcomes of a cohort of 39,616 Union Army veterans. Since then, the project has grown to include several complementary, publicly available data sets. These data are freely available for download. See “Reflections on the Early Indicators Project: A Partial History” by Larry T. Wimmer for further background. The VGM+ dataset continues this branch of research with multigenerational information, including birth and death information of the children and grandchild of a subset of the EI Project Union Army veterans. 

The full data set has been divided into 2 files - grandchildren_pt1_[filetype].[extension] and grandchildren_pt2_[filetype].[extension]. 
Please note that users need to append the two files to make the complete data set. 

For example in Stata: 

use "grandchildren_pt1_stata.dta", clear
append using "grandchildren_pt2_stata.dta"

Supported by the National Institute on Aging grants #P01 AG010120, #P01 AG010120-16, #R01 AG027960, #P01AG010120, and #R21AG064460

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