On November 11, 1930, Einstein's famous essay "On Religion And Science" was published in the "Berliner Tageblatt" [1b]. On that same day Hugh M. Everett, III was born [2, 3] in Washington DC .
Hugh lived in Washington until he was 8 years old , when his family moved to the Washington suburb of Bethesda, Maryland, then still a relatively small city. Except for three years as a graduate student at Princeton University, he spent all of his life in and around Washington, DC. (Washington and its Virginia and Maryland suburbs have by now merged into a single urban complex, its parts linked by the Metro system.)
Hugh's grandfather, Hugh Everett Sr., was a printer for the Washington Post at one time. He also owned the Terminal Press, a company where one of his sons, Charles (an uncle of Hugh Everett, III) worked until the mid-1930s.  (No later records of the Terminal Press have come to light. Perhaps it, like so many other companies, did not survive the Great Depression.) Hugh Everett Sr. also had two daughters, Kathryn and Virginia .
Hugh's father, Hugh Everett Jr. (1903-1980) was a native of Washington DC, and a graduate of the old Central High School. From 1928 to 1936, he (Hugh, Jr.) held a world rifle record at 1,000 yards . For our purposes, however, it is more important that he won the heart of Katherine Kennedy, a graduate of George Washington University and a beginning writer. She became Mrs. Katharine Kennedy Everett  and the mother of Hugh Everett III.
In 1936, when the future shaker of the foundations of quantum physics was six and America was beginning to recover from the Great Depression, Hugh's father, opting for a military career, joined the DC National Guard . Within a couple of years thereafter, Hugh's parents were divorced. Hugh subsequently did not have a good relationship with his mother. She spent some time in a mental hospital, possibly on more than one occasion . She published many stories and poems in literary magazines and other publications (interestingly, metaphysics and space were among her subjects). Decades later a posthumous collection of her poetry was published in her university magazine, authorized by her son Hugh III .
In 1940, with war threatening, Hugh's father received his commission in the regular Army. During World War II, he served as a staff officer with Gen. Mark Clark's 5th Army in Italy .