Robert Indiana kept a series of illustrated journals during the late 1950s and 1960s, in which he discusses the development of his work as well as daily life on Coenties Slip.

This journal page covers July 30–31, 1963. In his entry for July 30, 1963, Indiana records spending almost the whole day signing Leblanc's etchings and then mailing them from the post office at Bowling Green, registered but declaring no value, per instructions. The etching he refers to is Err, which was printed by the Atelier Georges Leblanc and published by Galleria Schwarz. Indiana also notes taking out a $50 mail order check for rent, and declares "perhaps I shall see '63 out on [the] Slip."

Indiana then writes that Gerald Laing continued to both work on his own and for Indiana, stating that his finishing of the first column was beautifully done, that "he works with a real conviction—and no bravado."

Indiana's entry for July 31, 1963, includes a partial sketch of his "Love Column," a sculpture measuring 60 inches high and nine inches in diameter on top. He notes that it is his first work on columns since the columns Eat and Die, which "must be scrapped." He also records buying a perpendicular file system for a set of cabinet drawers that J. (his former partner, fashion designer John Kloss) left behind, and that he received a letter from Samuel Wagstaff (curator of contemporary art at the Wadsworth Atheneum) saying that the serigraph project (Ten Works by Ten Painters, published in 1964) was postponed due to lack of funds. Indiana notes that he failed to catch James Rosenquist on television, but that Art (clinical psychologist and art collector Arthur Carr) caught the end of the program and reported that he came through well.