Okay, let’s tackle this. So Kathleen Mowry has 42 years of experience as an interior designer, which is impressive. Her skills in areas like sustainable design, furniture, and space planning are in demand. Location is Tulsa, Oklahoma, which is a smaller market. According to the Bureau of Labor Statistics, interior designers in the United States can charge around $50-$100 per hour. Considering her experience and skills, I would estimate her hourly rate to be around $125, which is slightly below the national average. However, this is a rough estimate and may vary depending on the specific industry demand and her level of expertise.