Advertisement from the De Roo Realty Company, 4-10-1971. This ad introduces George D. Kalman to the De Roo Realty team.
William C. De Roo (1902-1989) started De Roo Realty. In 1947 the business was located in Holland, MI at 20 West 8th, on the 2nd floor (1947 city directory). It later moved to 327 River Ave (1956 and 1984 city directories).
William's son Jack was employed by De Roo Realty as early as 1962 (1962 city directory).