The Bucksbaum Brothers, Martin (1920-1995) and Matthew (1926-2013). They formed the General Management Corporation (the parent company of General Growth Properties) in 1954.
Photo from www.ggp.com / General Growth Properties

Opening day festivities at Cedar Rapids, Iowa's TOWN & COUNTRY CENTER, which was General Management's first strip shopping plaza.
Photo from www.ggp.com / General Growth Properties