TWA was started in California, not Kansas City, but Kansas City was a significant base for them since the early days. They had a major maintenance base at MKC, which was prone to flooding (MKC is right on the Missouri River). After a major flood in the late 50's or early 60's (can't remember the exact date), TWA and the City of Kansas City worked together towards planning and building a new airport and maintenance facility several miles northwest of the city (MCI). AA has taken over the maintenance base at MCI, and is closing TWA's administrative center, which is just east of their maintenance base. At its height, TWA employed 4000 people in KC.
An unexamined life isn't worth living.