​PFEIFFER, Carl, architect, b. in Brunswick, Germany, in 1834; d. in Washington, D. C., 27 April, 1888. He came to the United States at the age of sixteen, and, after residing several years in the west, established himself as an architect in New York city in 1864, and became eminent. Among the New York buildings that were designed or erected by him are the Church of the Messiah, the Roosevelt and City hospitals, the Berkshire apartment-house, and the Fifth avenue Presbyterian church.