If you have ever been to Chestnut Hill, Philadelphia you will know that it is a quaint little town with a downtown section filled with the usual shopping, restaurants, bars, coffee shops, bakeries and other specialty shops to shop in.
Chestnut Hill is close to Norristown, PA. Probably a fifteen minute drive. There are lots of events in this area and one that I recently attended was Chestnut Hill's fall arts festival. I wrote a review on HubPages and hope that you check it out. I have linked it below.

If you are looking for local Pennsylvania artists you can certainly get you fair share of PA art in "suburban" Philadelphia.
There is a museum in the Chestnut Hill, Philadelphia are that features many PA artists that lived around the Philadelphia region. The museum is called the Woodmere Art Museum.
For those of you familiar with the area the Woodmere Art Museum is located on Germantown. For local Montgomery County, PA residents, this museum is very easy to get to and won't take up much of your time.

George Catlin was an American Painter who painted pictures of the West and of American Indians. He opened an Indian gallery in 1837 and mad his first trip to the West in 1832. He finally brought his exhibits to Europe and was extremely successful