During the attack the left half of the 10th Battalion, London Regiment became separated from their right.

The 2nd Battalion 17th London Regiment covered the withdrawal of the other battalions.

It was there that the London Regiment welcomed the 100 candidates who were split into teams of 10, issued with kit and briefed.

He then joined the Canadian Army, serving with the 2/24th London Regiment until the end of 1916.

Formerly a regiment, the unit is now a company of The London Regiment.

He joined the British Army in 1915, and obtained a commission in the 19th London Regiment.

The brigade formed a battalion sized unit 4th London Regiment.

On 1 July 1917, Lewis was promoted to lieutenant in the London Regiment.

In 1917 he volunteered for active service and was posted to the 13th London Regiment.

After World War I with the London Regiment he was ordained in 1920.