Unknown Wild Flower

I found this little patch of purple flowers growing on a small hill of dirt at the end of the RV park where we are at here in Burelson.  I’m not sure what kind of flower it is, but with the rain on the blooms I just had to stop and grab a capture of them.  I though it very pretty.  The blooms are quite small about 1 to 1 1/12 inch across.