I've driven through Morrisdale many times on my way to I-80. It's there, they have a Post Office. It's an older town, but there are children - I've been behind the school bus a few times ;-) There are a lot of small towns in the 168 zipcode area, many of which you'd hardly know are there. Centre County and Clearfield County had small communities everywhere back in the agricultural and small-scale manufacturing days. Most of them still exist, or were absorbed into nearby towns. Not that many were completely abandoned like Erbtown, unless they were in land that ended up in the hands of government.