London’s mother said his family came from "pioneers and dirt farmers", including a great-grandfather who participated in the Land Rush of 1889.

A student of history and genealogy, London traced his family lineage back to Samuel Nicholson, a Continental Navy officer during the American Revolution and commanding officer of the USS Constitution, for whom he created the Captain Samuel Nicholson Naval and Marine Corps History and Leadership Award to honor a graduating Naval Academy midshipman in 2014.

[4] Serving as a naval aviator and carrier pilot, London made 33 deployments in the North Atlantic, the Mediterranean, and the Caribbean with an anti-submarine warfare (ASW) "hunter-killer" unit during the Cold War, including as part of the airborne recovery team for John Glenn's Mercury space flight on Friendship 7, and during the Cuban Missile Crisis aboard the USS Randolph (CV-15) in 1962.

A hands-on leader, London oversaw CACI's operational turnaround to profitability and growth, and transitioning with the rapidly changing IT market into the information security and intelligence community arenas.

It was both a promise and an expectation as illustrated by his pioneering effort to create an ethics/compliance program ten years before government contractors were required to do so.