The people of Waco have been called Whackos for many years. As an individual who has lived in Waco my entire life, I'm not saying that it is true, but I am also not denying it! It's a quiet and quaint area.
This should be a very easy find.
I recommend parking the church just down the road near the intersection, there is plenty of parking there. It is a very short walk to the cache.
As stated, I have lived in this area my whole life and it is a pretty nice little area that doesn't get the love it deserves.