Mark,
I got one hit on a song by L. L. Hornsby -- God Will Turn the Glory On.
It was published by James D. Vaughan Music Company, but the linked page gives no inkling of the date, so it is hard to know whether this is the right person. This song here on YouTube is likely the right one:
The Find-A-Grave memorial for Leonard Leoncio Hornsby, which you may have already found, is here:
I traced him in Ancestry (the U.S. censuses, et al.) thusly:
1900: 5, at home, Cranford (or Crawford), Marshall County, Alabama
1910: 15, at home, farm laborer, Cranford (or Crawford), Marshall County, Alabama
1917: 22, World War I Draft Registration, single, works at steel plant, Gadsden, Etowah County, Alabama (address was Alabama City, which looks pretty much like a part of Gadsden; He served in the U.S. Army 1918-1919)
1920: Didn't find him (Parents were in Franklin County)
1926: Married Leona Pearl "Gladys" Phillips in Franklin County, Alabama
1930: 35, Public school teacher, married (1 child), Newburg, Franklin County, Alabama
1940: 45, Public school teacher, married (1 child), Phil Campbell, Franklin County, Alabama
Hope this might be of some help.
His glories sing,
Robert Vaughn
Mount Enterprise, TX
Ask for the old paths, where is the good way
For ask now of the days that are past...
Give ear, all ye inhabitants of the land.