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.

Indiana's journal page for April 17, 1962, includes a sketch of the sculpture Yes (this work no longer exists). Indiana records that he applied the title to the work, which he refers to as "another old construction," and makes note of the work's inscription (USA/1960) and signature (I), as well as its dimensions (59 ¾ x 12 ¾ x 4 inches). A note added at a later date indicates that Indiana traded the work with fellow artist Stephen Durkee for a painting on June 14, 1962.

Indiana also describes a Richard Stankiewicz opening that he attended, noting that he saw him briefly and that Eleanor Ward (founder of Stable Gallery) did not introduce them, so Stankiewicz slipped away before Indiana had the chance to say anything. He records making it back in time to see Ruth Kaufman about returning his paintings (from a show of works by Indiana and Robert Natkin that she curated), noting that she did not return the drawings.