The drive in movie was put up in 1948 and taken down in the 80s some time while I was out of town.
If you go back before the drive in, it was Liberty Bell Trailer Village in 1941. If you go back further, it was Ridge Farm Camp. The Ridges had parcels of land all over the area. You can check that out in historicmapworks(dot)com and enter bensalem in the search window. Going back to the late 1800s there was the Blue Spruce Inn, but I don't know which side of Lincoln Highway it was on. I've been asking old geasers in nursing homes but they're so old they forget. You may also be able to google Brian Butko's book about the Lincoln Highway for more information. Good luck with this.