Henderson makes some great wetsuits and are made in the US. I have a 5mm Titanium Hyperstretch that I bought for diving and now use kayaking. I love it for kayaking. Henderson also owns other brands and makes other sport specific wetsuits i.e. triathlon and surfing. Henderson USA - Henderson
Just a tip... The farmer john style wetsuits are not that warm. A lot of body heat will escape through the chest and shoulders.
I would suggest a short sleeve wetsuit. Sure a farmer john is easy on/off. But if it is cold she will have on layers anyway negating that benefit.