Born: February 18, 1957 in Mount Savage, Maryland
Assignments 
SMA Preston has held a variety of leadership positions ranging from cavalry scout to tank commander.
CSM Assignments
- 3rd Battalion, 8th Cavalry Regiment, 1st Cavalry Division, Ft. Hood, Texas
- 3rd “Grey Wolf” Brigade, 1st Cavalry Division, 1st Armored Division, Bad Kreuznach, Germany and V Corps in Heidelberg, Germany
- Combined Joint task Force 7 in Baghdad, Iraq
Selected Decorations and Awards
- Legion of Merit (with 2 Oak Leaf Clusters)
- Bronze Star
- Joint Meritorious Service Medal
- Meritorious Service Medal (with 4 Oak Leaf Clusters)
- Army Commendation Medal (with 5 Oak Leaf Clusters)
- Army Achievement Medal (with 3 Oak Leaf Clusters)
- Southwest Asia Service Ribbon
- Liberation of Kuwait ribbon (Saudi Arabia)
- Kosovo Medal
- NATO Medal
- Joint Meritorious Unit Award