You can get Susan through the St. Louis Symphony office.
I am pretty sure Mr. Drake is in the phone directory. He is probably registered with the musicians union so they can help out. He probably has an email address through Washington University.
PM me with your days in St. Charles and we can have a beer at Trailhead Brewery. Maybe you can give me a lesson before we go to Trail Head?
The trumpet professor at Lindenwood University is available this summer.
Dr. Lisa Blackmore.
Malcomb McDuffy is at Webster University.
John Korak at Southern Illinois University at Edwardsville.
Young Audiences of St. Louis: 2003 Artist fo the Year
Other than those mentioned above I would say you have the top teachers in the area.