According to the Texas State Historical Association:[1]"Medwick was often able to sell the resulting material almost immediately to local music producers.
In doing so, he rarely asked for formal contracts to establish proper songwriting credit for himself, instead choosing to peddle the songs outright —thereby surrendering any rights to potential royalty payments — for ready cash.
Thus, among his musician peers and industry insiders (if not always supported by publishing documentation), Medwick is commonly known to have written or co-written many songs which became hits for other artists with the writing credits typically attributed exclusively to the person who had purchased (and thereafter registered the copyrights on) the compositions.
"He sold many of his songs to Don Robey, the owner of the Duke and Peacock labels whose major stars were Bobby Bland and Junior Parker.
After a period of obscurity, Medwick re-emerged in the 1980s as a singer with saxophonist Grady Gaines' band of Houston blues veterans, the Texas Upsetters.