Billy Gray was a leader at one time of Hank Thompson's Brazos Valley Boys,
from about 1951 to at least 1955. He was also a recording star in his
own right. He played guitar and did quite a bit of songwriting, too.
Some of the tunes he wrote that were recorded by Hank Thompson included,
"HOw Cold-Hearted Can You Get", "Don't Make Me Cry Again",
and "Yesterday's Girl".
He also ran two music publishing firms as well as managing the Brazos