In the comics, Booster Gold's real name is Michael Jon Carter.
The chapter, intended to be the season 7's finale, became the full series final chapter after CW decided in April 2022 not to renew it for an 8th season.
Dr. Gwyn Davies is shown in the uniform of the British (Welsh) 38th Division with a red dragon on black background left shoulder patch. They saw action in the Battle of the Somme, the Third Battle of Ypres and the 100 Days Offensive.
When Booster Gold is playing golf, a ball hits a soldier's helmet and says, "That'll play." In an episode of Scrubs, which starred Donald Faison, JD accidentally hits someone in the head when driving a golf ball and Dr Cox says, "That'll play."
The younger Gwyn Davies cradles the dying Private Reece as they begin to recite together "Invictus", the famous poem by the Victorian poet, William Ernest Henley. This is the full text:
Out of the night that covers me Black as the pit from pole to pole, I thank whatever gods may be For my unconquerable soul.
In the fell clutch of circumstance, I have not winced nor cried aloud. Under the bludgeonings of chance My head is bloody, but unbowed.
Beyond this place of wrath and tears Looms but the Horror of the shade, And yet the menace of the years Finds, and shall find, me unafraid.
It matters not how strait the gate, How charged with punishments the scroll, I am the master of my fate I am the captain of my soul.
Out of the night that covers me Black as the pit from pole to pole, I thank whatever gods may be For my unconquerable soul.
In the fell clutch of circumstance, I have not winced nor cried aloud. Under the bludgeonings of chance My head is bloody, but unbowed.
Beyond this place of wrath and tears Looms but the Horror of the shade, And yet the menace of the years Finds, and shall find, me unafraid.
It matters not how strait the gate, How charged with punishments the scroll, I am the master of my fate I am the captain of my soul.