This was a second route to the Willow Grove Amusement Park ( current location of Willow Grove Park Mall ) .
The Route 55 trolley originally operated from Broad & Olney Terminal to Willow Grove .
This was a second Willow Grove to the Willow Grove Amusement Park ( current Willow Grove of Willow Grove Park Mall ) .
The Route 55 trolley originally operated from Broad & Olney Terminal to Willow Grove .