"United States Census, 1850," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:MH5M-RRK : 6 November 2019), Emily Davidson in household of White Davidson, Jackson county, Jackson, Alabama, United States; citing family 673, NARA microfilm publication M432 (Washington, D.C.: National Archives and Records Administration, n.d.).
Marriage Records. Alabama Marriages. Matthew R. Davidson married Sarah Artis on 29 June 1876 in Jackson County, Alabama. Ancestry.com. Alabama, County Marriage Records, 1805-1967 [database on-line]. Lehi, UT, USA: Ancestry.com Operations, Inc., 2016. See: https://ancstry.me/32phYjQ.