Recognizing the potential of the flash, Riis informed a friend, Dr. John Nagle, chief of the Bureau of Vital Statistics in the City Health Department who was also a keen amateur photographer. Nagle found two more photographer friends, Henry Piffard and Richard Hoe Lawrence, and the four of them began to photograph the slums. Their first report was published in the New York newspaper "The Sun" on February 12, 1888; it was an unsigned article by Riis which described its author as "an energetic gentleman, who combines in his person, though not in practice, the two dignities of deacon in a Long Island church and a police reporter in New York". The "pictures of Gotham's crime and misery by night and day" are described as "a foundation for a lecture called 'The Other Half: How It Lives and Dies in New York.' to give at church and Sunday school exhibitions, and the like." The article was illustrated by twelve line drawings based on the photographs.