Allen was born in Kansas and spent his youth just across the river near Leavenworth. He is a graduate of Platte City High School, Northwest Missouri State University, and the University of Missouri School of Dentistry.
Allen is married to Sara Reavis and they have raised two children, Ben & Jenny.
Allen came to Atchison and started his dental practice in 1984 and now operates a group practice with another colleague. He also started the Atchison Travel Center in 1986 and helped in management until it changed ownership in 2000.
Allen has been very involved in civic, professional, and charitable activities for the last 25 years and plans to continue to be involved.
"This is my adopted hometown and I believe Atchison will thrive."