Cope and Stewardson (1885–1912) was a Philadelphia architecture firm founded by Walter Cope and John Stewardson, and best known for its Collegiate Gothic building and campus designs. Cope and Stewardson established the firm in 1885, and were joined by John's brother Emlyn in 1887. It went on to become one of the most influential and prolific firms of the late-nineteenth and early-twentieth centuries. They made formative additions to the campuses of Bryn Mawr College, Princeton University, the University of Pennsylvania, and Washington University in St. Louis. They also designed nine cottages and an administrative building at the Sleighton School, which showed their adaptability to other styles, because their buildings here were Colonial Revival with Federal influences. In 1912, the firm wa