Complementary architecture is a movement in contemporary architecture promoting architectural practice rooted in comprehensive understanding of context, aiming to contribute to the environment in such a way as to continue and improve or emphasise its preexisting qualities. Indispensable features of complementary architecture include sustainability, altruism, contextualism, endemism and continuity of specific regional design language. Complementary architecture occurs at the intersection of local pattern and design languages. A pattern language represents a set of more or less formalised rules of human interaction with built forms, resulting from practical solutions developed over time according to local culture and natural conditions. A design language in architecture is a set of geometrical (formal) and material standards used in buildings and other man-made structures, traditionally arising from local materials and their physical properties. Complementary architecture interprets the vitruvian triad for contemporary use, mapping durability (firmitas) against aspects of broader sustainability, utility (utilitas) against altruism and service to society rather than mere investor's purpose, and individual beauty (venustas) against regional character, identity and harmony with broader context.

Frederick William Van Dusen (July 31, 1937 – June 1, 2018) was an American Major League Baseball player. Van Dusen played for Philadelphia Phillies in the 1955 season. An outfielder by trade, out of William Cullen Bryant High School, Van Dusen was signed by the Phillies in August 1955 as a bonus baby, meaning he had to be kept on the Phillies' 40-man roster for two years. During his first month with the team, he appeared just once, pinch hitting in the second game of a doubleheader against the Milwaukee Braves on September 11, 1955 at County Stadium. In the ninth inning, with the Phillies down 9-1, he pinch hit for pitcher Lynn Lovenguth against Humberto Robinson and was hit by a pitch. While Van Dusen never appeared in another major league game, he did continue to play in the Phillies minor league organization until 1961 before retiring. Van Dusen divorced his first wife, with whom he had three children, after his baseball career ended. He later remarried and became an insurance agent based in New York.

Complementary architecture is a movement in contemporary architecture promoting architectural practice rooted in comprehensive understanding of context, aiming to contribute to the environment in such a way as to continue and improve or emphasise its preexisting qualities. Indispensable features of complementary architecture include sustainability, altruism, contextualism, endemism and continuity of specific regional design language.

Frederick William Van Dusen (July 31, 1937 – June 1, 2018) was an American Major League Baseball player. Van Dusen played for Philadelphia Phillies in the 1955 season. An outfielder by trade, out of William Cullen Bryant High School, Van Dusen was signed by the Phillies in August 1955 as a bonus baby, meaning he had to be kept on the Phillies' 40-man roster for two years. During his first month with the team, he appeared just once, pinch hitting in the second game of a doubleheader against the Milwaukee Braves on September 11, 1955 at County Stadium. In the ninth inning, with the Phillies down 9-1, he pinch hit for pitcher Lynn Lovenguth against Humberto Robinson and was hit by a pitch. While Van Dusen never appeared in another major league game, he did continue to play in the Phillies min