The School Queens by L.T. Meade

Mrs. Howland did not like to have her years mentioned. Mr. Martin had been careful never to do so until Maggie appeared on the scene. On the contrary, he had dropped hints that his birdling, his Little-sing, his Victoria, was in the early bloom of youth. But now he said that she was a wonderful woman for her years.

Mrs. Howland bridled slightly. "I am not old, James," she said.