Elizabeth was born about 1802. She passed away about 1894.
"Georgia Marriages, 1808-1967", database, FamilySearch (https://familysearch.org/ark:/61903/1:1:FWQB-V26 : 11 January 2020), Elizabeth B. Cochran in entry for Luke Johnson, 1828.
"United States Census, 1850," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:MZY8-6WN : 19 December 2020), Elizabeth Johnsen in household of Luke Johnsen, Troup, Georgia, United States; citing family , NARA microfilm publication (Washington, D.C.: National Archives and Records Administration, n.d.).