The 26.5 linear feet of material accrued in 2012 necessitated a greatly expanded photographs series as well as two new series to accommodate documentation pertaining to Johnson's estate and other subjects. "Series I. Correspondence" remains relatively unchanged with the exception of certain reference files created by curators. "Series II. Photographs and other images" is now comprised of three subseries; namely "A. Personal," "B. Travel," and "C. Works of art." Completing the collection are "Series III. Estate;" and "Series IV. Other subjects."