Tourist Trapped

Please inform me of any instances where:
It says Dipper and Mabel's birthday is in June and Stan and Ford's is in August
It says Ford is the younger twin and Stan is older
There are typos or misspellings

When 12-year-old twins Stan and Ford are sent to Gravity Falls, Oregon for the summer, they discover some weird secrets about the town. Their Graunty Mabel says that it's nothing, but the twins don't believe her.

Stan and Ford fight monsters and even encounter a demon, all side-by-side with their friends Fiddleford and Bella.

(Yes, this does include my self insert/OC. Don't like, don't read)