Hi,
Nothing specific I'm afraid. My McNamara's came from County Clare too - but it's a very common name in the area, so it's unlikely we're connected.
I was fortunate in that we had some oral history passed down from my grandmother, and knew that our McNamara was married to a Butler (another common name in the area) and that they both came from Crusheen. We've managed to trace both lines back another couple of generations in the area thanks to a combination of our own efforts, the use of a researcher, and some good fortune.
Clare library has been very useful. It might be worthwile you looking at the 1901/1911 census there to see if you can see them in the area.
Regards Ann