Hi Don,
The facts you have found out are most interesting. When you go to Fort Scott, be sure to ask for Arnold Schofield, who is the fort's historian. He is a great guy and helped me when I was writing my book on the second battle of Cabin Creek. You might give him a call or e-mail him through the Fort Scott website. He might be able to answer some questions for you and point you in the right direction to hopefully discover some more information.
I will try to see if I can find Carter Springs for you.
Best Regards,
Steve Warren