I grew up outside of Shreve in the country and my parents still live there today. If you miss the field keep going and turn at the Elementary school, it will loop you back around to the fields. If you miss the school turn left at the church by the school and you can park there or make another left to circle around the school to the fields.
Also the Pizza Parlor in Shreve has good pizza and a really good sub called the Parlor sub. Other than that it is either amish cooking or a dairy bar. Not a whole lot in a one stop light town, good luck to all of the teams playing this weekend. If you get a chance stop at the Shreve library and tell my mom (Nancy) hi.
We are in Pittsburgh PA this weekend for a tourney or else my DD and I would be there watching all of the action.
Good luck!