Cragin Park, (now known as Blackhawk Park) near the Montana Street house where dad spent at least 2 of his "early years."  The Northwest Park District began to acquire land for Blackhawk Park in 1916. In 1921, renowned landscape architect Jens Jensen, designer of much of the West Park system, developed a plan for the park. Early improvements included a wading pool, a playground, tennis courts, and electric lighting. In 1926, the park district constructed a fieldhouse, one of six designed by Albert A. Schwartz for the Northwest and Old Portage Park Districts. Two years later, architect Walter W. Alschlager designed a major fieldhouse addition, including a natatorium. 

The Northwest Park District dedicated the park to the honor of a World War I Army unit, the Blackhawk Division of the Allied Expeditionary Force. Located in Chicago's Cragin neighborhood, Blackhawk Park was the creation of the Northwest Park District, one of 22 park commissions consolidated into the Chicago Park District in 1934.