You can use the free search tool at: https://familysearch.org/search to search for more information on his ancestors/family by plugging in their names/date ranges/locations etc. Looks like his first wife was Nancy Ann Conch.
U S Census, 1900 Magisterial District 5, Georges Branch, Breathitt, KY
Citing this Record: "United States Census, 1900," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/M9WN-HJ1 ), Cash Baker in household of Isac Baker, Magisterial District 5, Georges Branch, Breathitt, Kentucky, United States; citing sheet 14B, family 235, NARA microfilm publication T623, FHL microfilm 1240510.
Isac Baker Head M 45 Kentucky
Martha Baker Wife F 47 Kentucky
Mahaley Baker Daughter F 18 Kentucky
Jane Baker Daughter F 16 Kentucky
George Baker Son M 14 Kentucky
Cash Baker Son M 10 Kentucky
Lillie Baker Daughter F 9 Kentucky
Joseph Baker Son M 8 Kentucky
Ara Baker Son M 4 Kentucky
World War I Draft Registration
IMAGE SOURCE: https://familysearch.org/pal:/MM9.3.1/TH-1942-25075-140964-50?cc=1968530
Citing this Record: "United States World War I Draft Registration Cards, 1917-1918," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/K35N), Kash Baker, 1917-1918; citing Breathitt County, Kentucky, United States, NARA microfilm publication M1509, (Washington D.C.: National Archives and Records Administration, n.d); FHL microfilm 1643959.
Name: Kash Baker
Draft Registration June 15, 1917 Perecinct 9, Breathitt County, KY
White Male Married
Farmer in Wolf Cool, KY
Age 22 born Chavies, KY Dob: Don’t know
Nearest Relative: Wife and 1 child
Kentucky Death Records, 1911-1955
Citing this Record: "Kentucky Death Records, 1911-1955," index, FamilySearch (https://familysearch.org/pal:/MM9.1.1/N9H8-YG3 4), Kash Baker, 1944; citing Wolf Coal, Breathitt, Kentucky, 17545, Office of Vital Statistics, Frankfort; FHL microfilm 1913559.
Name: Kash Baker
Death: 1944 Wolf Coal, Breathitt, Kentucky
Father: Ike Baker
Mother: Martha Deaton
Spouse: Mary Collins Baker