At Tamarind, Nevelson made twenty-six lithographs and became the most productive artist to complete the fellowship up until that time. The lithographs she created were some of her most creative graphic work, using unconventional materials like cheese cloth, lace, and textiles on the lithographic stone to create interesting textural effects. With fresh creative inspiration and replenished funds, Nevelson returned to New York in better personal and professional circumstances. She joined Pace Gallery in the fall of 1963, where she had shows regularly until the end of her career. In 1967 the Whitney Museum hosted the first retrospective of Nevelson's work, showing over one hundred pieces, including drawings from the 1930s and contemporary sculptures. In 1964 she created two works: "Homage to 6,000,000 I" and "Homage to 6,000,000 II" as a tribute to victims of The Holocaust. Nevelson hired several assistants over the years: Teddy Haseltine, Tom Kendall, and Diana MacKown, who helped in the studio and handled daily affairs. By this time, Nevelson had solidified commercial and critical success.