For some reason, the history page on the Pinkerton website has a big hole in it between 1907 and 1962. What could they have been up to in the early 20th Century

For some reason, the history page on the Pinkerton website has a big hole in it between 1907 and 1962. What could they have been up to in the early 20th Century, I wonder? https://pinkerton.com/our-story/history https://pinkerton.com/our-story/history