Pittsburgh Press, April 22, 1913:

Hal Chase played his last game at second base for the New Yorks on Friday. When Manager Frank Chance put Chase back on first base in Saturday’s game he had reached the conclusion that Hal could not remain at the keystone bag without further clogging the infield’s machinery. While it is true that Chase originated the idea of covering second base for Chance and that he did his level best to fill the bill, even though he is a left-handed thrower, it soon developed ...

San Francisco Call, January 11, 1913:

Frank Chance, newly named leader of the New York American league team, announced that he would try to “come back” as a player this year…Chance would go to first base, relieving Hal Chase, the star initial sacker, and Hal would be shifted to second base, a position he is anxious to fill.
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[Chance on Chase:] “He is fast enough on his feet to overcome the handicap of being left handed. He probably would not make a double play as fast as a speedy right ...