
Citation
"Missouri Marriages, 1750-1920," database, FamilySearch (https://familysearch.org/pal:/MM9.1.1/V2DF-SNK : accessed 12 September 2015), A. J. Armstrong and Elizabeth Green, 13 Dec 1883; citing Scotland,Missouri; FHL microfilm 1,014,531.
"California Death Index, 1905-1939," database with images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/QK91-7KRD : accessed 12 September 2015), Andrew J Armstrong, 1917; citing 43988, Department of Health Services, Vital Statistics Department, Sacramento.
Andrew and his son Clarence in the 1900 census:
"United States Census, 1900," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M3CW-2K6 : accessed 12 September 2015), Andrew Armstrong, Jefferson Township, Clark, Missouri, United States; citing sheet 4B, family 83, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, n.d.); FHL microfilm 1,240,848.