Elizabeth was born in 1835. She passed away in 1914.
Sources
"United States Census, 1850," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:MCDT-R7L), Amy Gartwood in household of Pemberton Gartwood, Morgan, Tennessee, United States; citing family , NARA microfilm publication (Washington, D.C.: National Archives and Records Administration, n.d.).