There's a lot of factors that work against identifying Cooper.
There's a lot of factors that work against a MLB hitter hitting a home run, similarily.
Here's a list of players with than 1000 at bats and no home runs, just looking at players 1946 or later
Mick Kelleher 1972-09-01 1982-10-03 2,869
Neil Berry 1948-04-20 1954-05-11 2,453
Luis Gomez 1974-04-28 1981-10-04 2,253
Ed Crosby 1970-07-12 1976-05-12 1,976
Chad Fonville 1995-04-28 1999-07-09 1,783
Larry Lintz 1973-07-14 1978-05-30 1,581
Eddie O'Brien 1953-04-25 1958-04-19 1,181
Luis Ordaz 1997-09-03 2006-04-03 1,168
Bobby Floyd 1968-09-18 1974-06-24 1,134
Gene Handley 1946-04-16 1947-09-28 1,023
These two were modern-era, with more than 3000 at-bats and no home run
Marty Martinez 1962-05-02 1972-10-04 3,927
Tim Johnson 1973-04-24 1979-09-28 3,428
So where am I going with this? Vietnam War stories, told by Tim Johnson.
The two things are connected (inability to hit home runs, and lying)
Or maybe not.
Just like every connected dot in the Cooper vortex. Maybe. Maybe not.
Vietnam War stories controversy
This [Ed. coaching, later ] success was partly attributed to the stories Johnson would tell his players about his battle experiences in the Vietnam War. For example, he told Hentgen a story about his war experiences to get him to accept a different place in the pitching rotation.
However, in late November, Johnson told several Toronto newspapers that all of these stories were completely made up. In truth, Johnson had been in the Marine Corps reserves throughout the war, and trained mortarmen at Camp Pendleton while playing in the Dodgers' farm system. He'd also claimed for over 20 years that he'd been an All-American high school basketball player, and turned down a scholarship to attend UCLA.
During the 1998 baseball winter meetings, Johnson said that admitting the truth was like having "a 50,000 pound weight" taken off his shoulders. He said he'd lied because he felt guilty about going to spring training with the Dodgers while many of his friends fought in the war. He entered therapy, and called several of his players to apologize for lying.