year, the electors selected seven new names (including Charlotte Cushman, the first performer to be elected) as well as two of the foreign-born honorees from the previous elections. An additional 21 electors either retired or died in the next five years, and only 34 of the original electors remained by 1920. The Hall of Fame was temporarily converted to a barracks in 1918, during World War I. The United States Army laid out beds for 600 soldiers in the museum underneath the colonnade. The next year, writer Robert Underwood Johnson was appointed as the Hall of Fame's second director, following the death of MacCracken, his immediate predecessor. 1920s and 1930s Between the two world wars, the Hall of Fame saw up to 50,000 visitors annually. Seven Americans were selected in 1920, including foreign-born theologian Roger Williams, who had first been elected ten years prior. Five busts, depicting nominees from previous elections, were unveiled in May 1922; they were the first busts to be added since 1907. The same year, the Hall of Fame's board of electors decided to abolish separate elections for female nominees. The board also enacted stricter inclusion criteria: nominees were only considered if they had been dead for at least 25 years, and three-fifths of electors had to agree on induction. The electors had been concerned that "zealous partisans and relatives" would attempt to nominate individuals of "temporary vogue" shortly after their deaths. The honorees' tablets, which had been segregated by gender, were subsequently rearranged. New tablets had to be created for each of the seven female honorees because the existing tablets were wedged so firmly into the hall's foundation. NYU continued to unveil busts of honorees from previous elections in May of each year. Seven additional busts were dedicated in 1923, ten in 1924, and five in 1925. Only two men were picked in the 1925 election, the first held under the new rules; one of them was foreign-born naval officer John Paul Jones, who had first been elected twenty years prior. The university dedicated nine busts in 1926, six in 1927, five in 1928, and eight in 1929. Nine busts were dedicated in May 1930, as well as two sets of new gates. At that point, all 65 previous honorees had busts. Four men were elected to the Hall of Fame later the same year, and their busts were unveiled the next May. By 1935,