WASHINGTON — Robert Blakeley, whose yellow-and-black fallout shelter sign became a grim symbol of the Cold War and, in many places across the country, a now-rusting reminder of the perils of nuclear brinkmanship, died Oct. 25 at a senior-living community in Jacksonville, Fla. He was 95.
The cause was complications from a bacterial infection, said his daughter, Dot Carver.
Mr. Blakeley was a logistics official at the US Army Corps of Engineers when he devised and perfected the shelter sign, an ominous image of three downward-pointing triangles that evoked the international symbol for radiation and, in the event of a nuclear explosion, pointed toward the nearest public shelter.
The shelter system, created by newly elected President Kennedy in 1961, was designed to safeguard Americans in the event of a nuclear strike, offering a more substantial, concrete-walled means of protection than the oft-repeated suggestion to ‘‘duck and cover.’’
At the time, a strike seemed inevitable. A summer standoff with the Soviet Union over the control of Berlin placed US military forces on high alert, and later in 1961, Life magazine ran a cover story showing a helmeted, plastic-gloved man in a ‘‘civilian fallout suit.’’ The story promised that ‘‘97 out of 100 people can be saved’’ from nuclear fallout if they take proper measures. Meanwhile, a 46-page civil defense pamphlet elaborated on the dark arts of ‘‘fallout protection.’’
That October, the first federally backed shelters were unveiled. Located in the basements of churches, bank buildings, apartment complexes, and municipal structures, the shelters were stocked with food and water and designed to prevent radiation exposure as well as the kind of mass chaos envisioned by television’s ‘‘The Twilight Zone,’’ where neighbors in one episode came to blows over access to a small private shelter.
Mr. Blakeley, a Marine veteran who served in two of the fiercest battles of World War II and the Korean War, was an expert on chaos, but not graphic design. Still, he knew enough to dismiss an early suggestion that the signs be made of railroad board, a papery material that would be difficult to hang and would likely go up in flames after an atomic blast.
‘‘Whatever we developed,’’ he told writer Bill Geerhart for a 2011 post on the Cold War blog Conelrad Adjacent, ‘‘it would have to be usable in downtown New York City, Manhattan, when all the lights are out and people are on the street and don’t know where to go.’’
Mr. Blakeley enlisted Blair Inc., a design company, to come up with a few options for the aluminum sign’s image. Blair was instructed to include at least one design inspired by the radiation symbol and to focus on crafting a straightforward, easily reproducible logo with room for arrows and details on a shelter’s capacity.
The results, Mr. Blakeley recalled, included a preliminary sketch of a family of three moving toward a shelter. There also was a distinctive triangular design that may have been drawn from Clarence Hornung’s ‘‘Handbook of Designs and Devices,’’ a commonly used reference work. The book featured a selection of triangle designs, including the one that Mr. Blakeley settled on while meeting with a visibly impatient Powell Pierpoint, the Army’s general counsel.
‘‘I’m used to vacuum cleaner salesmen,’’ Mr. Blakeley recalled Pierpoint telling him. ‘‘What do you recommend?’’
Mr. Blakeley’s choice, and subsequent development, proved fateful. Working with what is now the manufacturing company 3M, he settled on a durable form of reflective paint that has helped thousands of his signs remain visible (if faded) signifiers of shelters that have long gone out of use.
In time, the design Mr. Blakeley developed also became an instantly recognizable emblem of Cold War fear and uncertainly, visible in films and television shows as well as on concert posters and record covers, including Bob Dylan’s 1965 album ‘‘Bringing It All Back Home.’’
When asked about the legacy of his creation, however, Mr. Blakeley was nonchalant, treating the shelter signs as hardly more impactful than his work as a president of Toastmasters International, the public speaking organization.
When his children were young, he told Conelrad Adjacent, ‘‘we’d go down the street and one of the kids would say, ‘Hey, Dad, there’s one of your signs.’ But you know, other than that it’s just like many of the other things that happen in life. It’s just one of those routine things. I don’t know if I’ve ever had an occasion to tell anybody that I was involved in it because I don’t think it’s ever been high on my priorities.’’
A native of Ogden, Utah, Robert Wilson Blakeley studied at Utah State University before enlisting in the Marines during World War II. He fought on the beaches of Iwo Jima. Later, called up from the reserves during the Korean War, he was one of the so-called ‘‘Chosin Few’’ who escaped encirclement by overwhelming Chinese forces at the Chosin Reservoir.
Mr. Blakeley studied landscape architecture at the University of California Berkeley and graduated in 1954. He also received a master’s degree in business administration, Carver said.
Mr. Blakeley joined Toastmasters after giving what he described as an unsuccessful presentation to Corps leaders. He helped change Toastmasters’ bylaws to allow women to become full members, and after being elected its international president in 1976 he traveled across world to expand the group’s reach.
Among his unfinished projects was a small fallout shelter in the family’s backyard in Alexandria, Va., his daughter said. Mr. Blakeley had drawn up the plans, but apple trees filled the space instead.