In January 1920 The Essendon Gazette reported that “accelerated and more frequent services for electric trains between Sandringham and Essendon came into operation”. Trains were to run every four minutes in peak times and every fifteen minutes “in the slack periods”. It was noted that the improved service was much appreciated.
The Essendon Gazette p2, 29/01/1920
You can read the full article on microfilm in the Sam Merrifield Library.