One post couldn’t contain your questions about the WGN show Manhattan, so we’re bringing you a second dose of Q&A with Heather McClenahan, executive director of the Los Alamos Historical Society.

Today’s entry digs deeper into the social history and context at the Los Alamos site (one of three locations that make up our National Treasure, Manhattan Project Historic Sites). Read on to discover which characters are real, what “computers” really meant, and what historical storyline McClenahan would like to see most on the show.

[Note: No big spoilers ahead, though we do refer to some plot points. So watch first if you’d like, then come back here for more fun facts!]

What was the nature of diversity at Los Alamos?

As far as we know, only one African-American was at Los Alamos during the Project. We only know this from pictures, and he was a military man.

A significant number of Native Americans from the nearby pueblos and Hispanics from ancient northern New Mexico villages worked on the project. They served in many capacities, especially housekeeping for women and construction trades for men.

Internationally, the project was quite diverse, with, among others, Hungarians, Poles, Germans, Italian, British, and American scientists working on the project.

What were security protocols/screenings like for these foreign scientists? What trumped security/spying concerns?

Security screenings consisted of long interviews with the subject, as well as the subject’s family, friends, neighbors, supervisors, and colleagues. Personnel files, FBI files (if they existed), and other documents were thoroughly combed. It was a long, slow process. One scientist complained that it took as long as a dog’s gestation period, and couldn’t the Army get it down to that of a rabbit?

Which characters in the show are real? If fictional, are they based on anyone in particular?

So far, the only real characters are Robert Oppenheimer and Niels Bohr. Unfortunately, while cast well, Oppenheimer’s character in the show is nothing like he was in Los Alamos. He was beloved and respected for his care and concern for the scientists and their families, his ability to successfully interface with the military on behalf of the civilians, and his leadership in moving the project along.

Frank Winter seems to be based upon a few folks. He has a few characteristics from Oppenheimer (driven to succeed, the family cook), Seth Neddermeyer (advocate for implosion), and perhaps George Kistiakowsky, the head of the explosives division for the project. Liza Winter also seems to have some Kitty Oppenheimer characteristics.

Charlie Isaacs seems to be a little bit Richard Feynman and a little bit James Franck, but married to the wife of Louis Hempelmann (the project’s medical director, who was married to Elinor Pulitzer, heir of the famous newspaper fortune).

Colonel Cox seems to be based on Peer de Silva, who was head of the security office in Los Alamos. He disagreed with General Groves about giving Oppenheimer a security clearance.

The Hungarian who appears to be the assistant lab director (Occam?) is, of course, based on Edward Teller. Teller was not as high in the project or as close to Oppenheimer as the character [is].

Is the real-life Dr. Frederick Reines portrayed in the show?

Not yet. We’re keeping an eye out for him, though! Dr. Reines, who discovered the neutrino, is the only person to receive a Nobel Prize for work done directly at the laboratory in Los Alamos (although more than two dozen folks associated with Los Alamos have won Nobel Prizes).

Computers were women?

Yes! At the beginning of the century, women's minds were considered better suited for detailed, repetitive tasks. Some of the computers brought brilliance and innovation to their work despite men's underestimation of their abilities.

Before the Manhattan Project, computers worked in the Harvard College Observatory in the 1890s. Henrietta Swan Leavitt made discoveries which allowed for the realization that our universe is expanding. Computers also worked for the Army during WWII at the University of Pennsylvania on ballistics research. Some went on to be among the first programmers for the ENIAC.

What's one interesting storyline/issue you hope is portrayed on the show?

Speaking personally, I’d like to see the Special Engineer Detachment. Some 1,600 young men who were studying physics, chemistry, and engineering in college were drafted and brought to Los Alamos to help in the tech area with all sorts of tech-related jobs. After the war, many of these young men went on to get their Ph.D.s, and at least six of them won Nobel Prizes.

The original version of this story has been edited for clarity.