Mary Hudson is playing baseball with the Comanches. She is always either on second or third base which represents her relationship with John. When she is in the outfield, she wears a catcher's mitt. This shows Salinger's style of catching and perserving innocence. In this scenario it is ironic becasue Mary can't catch anything in the outfield wearing a catcher's mitt, meaning she can't save her own innocence. Baseball serves as a sexual metaphor, and Mary is always rushing past 1st base in her relationships.She is wearing a brown dress.
The Laughing Man's enemies, the Dufrages, have him tied up on a tree after killing his love, Black Wing. This may draw a connection between how Mary and John broke up. The Laughing Man is kind and loves the innocent animals, but the corrupt mean Dufrages kill Black Wing. This is ysmblic of Jo of the end of Mary and John's relationship because Mary could not keep her innocence like JOhn wanted. Losing Mary for this reason caused John to figuratevly die.
Mary at the 2nd baseball scene is sitting between baby carriages and pregnant women at the park, watching baseball but not playing. This could be symbolic that Mary either is pregnant or wants to be, but John does not want to take this innocence and youth away from her. A connection can be drawn to Salinger's life, when Joyce Maynard wanted to have a child but Salinger did not want to be tired down or take her innocence again.