I came across Ken Hammock in Billboard magazine while doing some research on Goldrush Junction in Pigeon Forge. I didn't know anything about him, but there's a nice write up on him at Mellow's Log Cabin blog.
A look on ancestry.com shows a Ken Hammock, age 18 in the 1940 US Census. His family is living on Dameron Avenue in Knoxville, Knox County, Tennessee. His father, Otey, was a stationery engineer in a dairy. His mom, Thenie was not working outside the home. His older brother, James, was a filler rubber at a furniture manufacturer.
Ten years before, in the 1930 US Census, the family was living at Dameron Avenue as well. Otey was a laborer at a cotton mill. Thenia was a laundress. James, 18 then, was a clerk at a grocery store.
Aside from being a musician, Ken Hammock was also a veteran. He served in the army during WWII and is buried at the Tennessee State Veterans Cemetery in Knoxville.