With Brown's pledge, the Nittany Lions now have five scholarship players on their roster ahead of next season.
The women's team moved up four spots in this week's Inside Lacrosse rankings.
Janecke registered three goals for Team USA en route to the squad's world championship.
Henline has pitched to a crisp 3.32 ERA this season.
Jack Traynor tallied six goals to spur the Nittany Lions towards the win.
Fink played for the AJHL's Brooks Bandits, where he earned league MVP honors with 46 goals and 56 assists in 54 games played this season.