Here are Lucy and Edward in 1850 Jasper County, Missouri, with children Lucy (1835), Sarah (1838), Elzey (1840), Mary (1842), Mahala (1843), and Tenn (1849). It gives son Elzey's birthplace as Virginia, Mary and Mahala in Iowa, and Tenn in Missouri.
"United States Census, 1850," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MDZZ-HNS : 12 April 2016), Elizabeth Gray in household of Edward Gray, Jackson, Jasper, Missouri, United States; citing family 188, NARA microfilm publication M432 (Washington, D.C.: National Archives and Records Administration, n.d.).
Elisabeth and Edward in Newton County, Missouri in 1880, with grandson J Wesley Buzzard (1866):
"United States Census, 1880," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M6XB-CNR : 7 September 2017), Elisabeth Gray in entry for Edward Gray, 1880; citing enumeration district ED 100, sheet 428C, NARA microfilm publication T9 (Washington D.C.: National Archives and Records Administration, n.d), roll 0705; FHL microfilm 1,254,705.