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 his daily life on Coenties Slip.

In his journal entry for September 8, 1961, Indiana describes getting his sculpture Moon ready for pick up by the Museum of Modern Art. He writes "much scraping and sanding [this] morning [to] bring base into alignment," and that James Rosenquist and Charles Hinman came by while he was working. Rosenquist volunteered to put the bearings in his sander, and in a few minutes it was in working order. Indiana records being barely finished when he saw the art couriers, who had been waiting for some time, and that "it [Moon] cased quite a stir when [it] was on the sidewalk, with bar and parking lot agog."