J. J. Astor IV.

This is coolbert:

They don't make them like this anymore!! The super-rich man volunteering to do his military service during a time of war!

John Jacob Astor IV.

Astor the heir to an enormous fortune, at the time of his unfortunate death on the Titanic one of the richest men in the world but hardly one to shirk his duties and perceived obligation during a time of war!

"Astor died in the sinking of the RMS Titanic during the early hours of April 15, 1912. He was among the 1,514 people on board who did not survive. He was the richest passenger aboard the Titanic and was thought to be among the richest people in the world at that time, with a net worth of nearly $87 million when he died (equivalent to $2.16 billion in 2016)"

ASTOR NOT ONLY VOLUNTEERING FOR ACTIVE MILITARY SERVICE DURING THE SPANISH-AMERICAN WAR BUT EVEN FINANCING HIS OWN UNIT OF OTHER VOLUNTEERS LIKE-MINDED!

And as gleaned from the wiki entry for J. J. Astor:

Military service.

"From 1894 to 1896, he was a colonel on the military staff of New York Governor Levi P. Morton. Shortly after the outbreak of the Spanish–American War in 1898, Astor personally financed a volunteer artillery unit known as the 'Astor Battery', which saw service in the Philippines. In May 1898, Astor was appointed a lieutenant colonel in the U.S. Volunteers and served as an officer on the staff of Major General William Shafter in Cuba, during the Santiago Campaign."

Like I said, they don't make them like that anymore!

coolbert.