Sally Sargent was the last production from Terrytoons. You could see her as another version of Pauline ( of THE PERILS OF PAULINE ) or Fanny Zilch, although her adventures were actually more in the line of Jonny Quest. Some Hanna-Barbera people worked on this cartoon. Janet Waldo ( voice of Judy Jetson, Penelope Pitstop, Josie, etc. ) did the voice of Sally Sargent.
So it's not surprising that this cartoon looks like some of the Hanna-Barbera cartoons from the same period.