Suggest you read, "Billiards As It Should Be Played" written by Willie Hoppe and published in 1941.
On page 25, Willie explains how he aims, making a point of his method of looking at the cue ball last. One of his fellow pros wanted to bet him otherwise. Willie's response was, it didn't matter. Willie never wagered on his game. (Kinda like the Ralph Souquet of his era)... He goes on to write, and I quote directly from his book, "Speaking of wagering, reminds me of a most humorous incident. Charley Petersonand I were on one of our numerous tours several years ago. We landed in Spokane for an exhibition. Before we started playing, an Indian Chief in magnificent regalia, strode up to Peterson.
Evidently he thought Charley was my manager. "My son is a very good player", he informed Pete in excellent English. "I would like to arrange a game between Mr. Hoppe and my son at the conclusion of his match - say 250 points for a side bet of ten thousand dollars.
Pete didn't know what to say. He knew I didn't bet on my own game and neither did he. We both started to worry about how to evade the issue without appearing pikers. We started our match without saying anything further to the Chief. After the completion of the exhibition , I slyly glanced over toward where the Indians were sitting, but they were gone.
I happened to make a run of 246 that evening. Which again proves, never bet a man at his own game.
Hope this answers the question whether Willie played pocket billiards. I don't know of many players before or after Willie that could run 246 balls.
CrossSideLarry