Wilhelmina

Wilhelmina can be found at the North entrance/exit of the Coalition Camp, but will not be there when you first arrive. After speaking to the commanders at the tent in the south of the camp, when you go to leave, she will be found near the exit hawking her turnip juice, one of the components needed to complete Neera's quest. You can buy it yourself, or if Neera is in the party, she'll buy it of her own volition (though you need to initiate dialogue with Wilhelmina first yourself).

A soldier is trying to kick her out of the camp, you can buy the juice and allow her to stay, or kick her out of the camp yourself.