"United States Census, 1930," database with images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/X79Q-RNT : accessed 30 July 2017), Mary Jane Brown in household of Council Brown, Detroit (Districts 0001-0250), Wayne, Michigan, United States; citing enumeration district (ED) ED 204, sheet 6A, line 15, family 4, NARA microfilm publication T626 (Washington D.C.: National Archives and Records Administration, 2002), roll 1039; FHL microfilm 2,340,774.
"United States Census, 1940," database with images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/KHM1-VDW : accessed 30 July 2017), Mary J Brown in household of Concil E Brown, Ward 8, Detroit, Detroit City, Wayne, Michigan, United States; citing enumeration district (ED) 84-339, sheet 7A, line 7, family 163, Sixteenth Census of the United States, 1940, NARA digital publication T627. Records of the Bureau of the Census, 1790 - 2007, RG 29. Washington, D.C.: National Archives and Records Administration, 2012, roll 1851.
"Michigan Death Index, 1971-1996," database, FamilySearch (https://familysearch.org/pal:/MM9.1.1/VZTR-N95 : 4 December 2014), Mary Jane Reed, 08 Jan 1987; from "Michigan, Deaths, 1971-1996," database, Ancestry (http://www.ancestry.com : 1998); citing Detroit, Wayne, Michigan, death certificate number 214, Michigan Department of Vital and Health Records, Lansing.
"United States Social Security Death Index," database, FamilySearch (https://familysearch.org/pal:/MM9.1.1/JRLX-8PY : 19 May 2014), Mary Reed, Jan 1987; citing U.S. Social Security Administration, Death Master File, database (Alexandria, Virginia: National Technical Information Service, ongoing).