I only saw Spur in one episode of MLP FiM, which was the episode Growing Up Is Hard To Do. She never made an appearance after that, but at the end of the episode the Cutie Mark Crusaders said that they’d like to visit her sometime. I can only ponder in my head when the Cutie Mark Crusaders visited Spur, but that bit of information is all we got left of her to ponder about.