LMR version 2:
LMR v2 data at NOAA/NCEILMRv2 data page at University of Washington
Tardif, R., G. J. Hakim, W. A. Perkins, K. A. Horlick, M. P. Erb, J. Emile-Geay, D. M. Anderson, E. J. Steig, and D. Noone, 2019: Last Millennium Reanalysis with an Expanded Proxy Database and Seasonal Proxy Modeling. Clim. Past, 15, 1251-1273, DOI: 10.5194/cp-15-1251-2019.
LMR version 1:
LMRv1 data pageHakim, G. J., J. Emile-Geay, E. J. Steig, D. Noone, D. M. Anderson, R. Tardif, N. J. Steiger, and W. A. Perkins, 2016: The Last Millennium Climate Reanalysis Project: Framework and first results. J. Geophys. Res. Atmos., 121, 10.1002/2016JD024751
The source code for the LMR is open on Github. Web-based documentation describing the code also provides a page with access to data to perform basic reconstructions.