ITH A LARGE PERCENTAGE of old housing stock, Maine isn’t often associated with 20th-century Modern architecture. Yet a tour of Portland, the state’s largest city, reveals a fine collection of Atomic Age buildings; most were designed by John Leasure. A native of Pennsylvania, Leasure moved to Maine ca. 1960; he subsequently served as chairman of the Maine State Board of Architects. Known for such public buildings as the South Portland Library, he built a home for his family, from 1968 to 1972,
