Though much of her early life, including her real name and exact date of birth, remains in shadow, Laura Keene is thought to have come from a well-to-do background. She was widely read and spent time in Turner’s studio during her childhood. After performing with Madame Vestris’ company, Keene journeyed to New York in 1852 at the invitation of James W. Wallack. She became the leading lady of his theater and enjoyed great success.
While not much is known about the early life of Edward Mallen, he is remembered as an artist and frequenter of Pfaff's. William Winter identifies "Edward F. Mullen" as one of the artists who frequented Pfaff’s Cave along with Launt Thompson, George Boughton, and Sol Eytinge, Jr. (Old Friends 66, 88). Walt Whitman, a close friend of his, is also quoted as saying that "Mullin" was "among the leaders" at Pfaff’s (Bohan 134; T. Donaldson 208-209).
Born on Long Island and raised in Brooklyn, Walt Whitman spent his childhood and early adulthood amid the sights and sounds of New York City and its environs. As a young man Whitman worked as a journeyman printer for several New York newspapers, before ultimately becoming a journalist and editor in his own right. Before committing himself to poetry, Whitman also worked intermittently as a schoolteacher, a carpenter, and a writer of sensational prose fiction.