Complex sentence: In 1955, at age 18, she married Richard Carleton Meeker whom Mary described as "the boy next door," and within six weeks she was pregnant with her only child, Richard, Jr. (born July 3,1956).
Split into simpler sentences: In 1955, at age 18, Moore married Richard Carleton Meeker whom she described as "the boy next door". Within six weeks she was pregnant with her only child, Richard, Jr. (born July 3,1956).