H.E. Crook of Baltimore, Maryland was a construction company, dealing primarily in heating and ventilation, that was in operation from the early 1920s to the mid-1940s, approximately. The business installed these systems in houses, public buildings, commercial buildings, churches, and apartments throughout greater Baltimore.
Their clients included organizations and businesses such as: Goucher University, Western Newspaper Union, the local Woman's Christian Temperance Union, House of the Friendless, Maryland Tobacco Growers Association, Kelly's Stag Hotel, Baltimore and Philadelphia Steamboat Company, and Ebenezer African Methodist Episcopal Church.
Notably, H.E. Crook challenged the U.S. government in the federal Supreme Court, in the case H.E. CROOK CO. v. UNITED STATES in 1926. The company contended that they were owed back payments due to delays in construction, delays which occurred because of their client, the U.S. government. The Court affirmed that the government was in the right and that Crook was not owed any extra money.