She is the traditional subject of the song “Yellow Rose of Texas” and one of the more compelling characters in the miniseries “Texas Rising” which just completed its debut run on the History Channel. In it, the character has an affair with Mexican General Santa Anna and is occupying his attention leading up to the battle. In addition, she may have had personal motives of revenge that led to her desire to see Santa Anna defeated.
The familiar song does not deal with San Jacinto or Santa Anna. It was composed in the 1800s, although the actual name of the composer is unknown.