Analysis of information sources in references of the Wikipedia article "Calvin Demarest" in English language version.
Willie Hoppe, the 18.2 balkline billiard champion, successfully defended his title by defeating Calvin W. Demarest of Chicago last night 500 to 440 before an enthusiastic assemblage in the ballroom of the Hotel Astor.
Calvin Demarest, former national amateur billiard champion, attacked his wife with a pocket knife today and then slashed his own throat. His mother, who attempted to restrain him, was cut on the hand. Husband and wife were taken to a hospital.
Interest in billiards among local enthusiasts received an impetus last week by the initial appearance here, in the role of a professional, of Calvin Demarest, the young Chicagoan who for a year or more held the amateur championship of the world.
Calvin Demarest of Chicago to-night broke the world's amateur record for the high run in the opening game of the National amateur 14.2 billiard tournament at the Chicago Athletic Club, making 168 in his seventeenth inning. Demarest won the game, defeating Clarence Jackson of Chicago by the score of 400 to 165. Demarest's average was 21 1-19, and Jackson's 9 3-18.
Among all the followers of billiards yesterday there was not one who was not ready to concede the amateur championship title to the young player from the West, Calvin Demarest. That this youth had displayed the most perfect 14.2 balk line billiards ever played in an amateur tournament was the verdict of all.
Calvin S. [sic] Demarest, former amateur Champion billiard player and later professional, died at the Elgin Asylum for the insane last night, it was learned ...
Records for amateur 14.2 balk-line billiards were created under the masterful cue-work of Calvin Demarest and J. Ferdinand Poggenburg yesterday in the continuation of the National championship tournament. The genius of the young Westerner's billiards was demonstrated in no uncertain way, and he held a big crowd of spectators thoroughly interested in the concert hall of the Liederkranz Club, Fifty-eighth Street, near Park Avenue.
