Between 1989 and 1994, Indiana painted a series of 18 canvases inspired by the shapes and numbers in the war motifs paintings that Marsden Hartley did in Berlin between 1913–15.[9]
Indiana has been a theatrical set and costume designer, such as the 1976 production by the Santa Fe Opera of Virgil Thomson's The Mother of Us All, based on the life of suffragist Susan B. Anthony. He was the star of Andy Warhol's film Eat (1964), which is a 45-minute film of Indiana eating a mushroom in his SoHo loft.
In 1964, Indiana moved from Coenties Slip to a five-story building at Spring Street and the Bowery. In 1969, he began renting the upstairs of the mansarded Victorian-style