A large adjustment to the monument took place in the 1930s, when the plaza's yellow brick, which nicely contrasted with the white marble trim, was replaced with the orange-colored stone common to Parks Department projects of the period. However, these have since chipped and are splitting. The memorial was also given a complete coating of protective paraffin, used at that time to preserve the memorial. In 1962, the City spent over $1 million in extensive repairs to the monument, including a new roof, which had deteriorated, and portions of the monument were replaced with more durable granite.