Frank Miles Day (April 5, 1861 – June 15, 1918) was a Philadelphia-based architect who specialized in residences and academic buildings.
In 1883, Day graduated from the Towne School of the University of Pennsylvania, and traveled to Europe. In England, he apprenticed under two architects, and won the 1885 prize from the Architectural Association of London.
After his apprenticing in England, Day returned to Philadelphia, where he worked with George T. Pearson and Addison Hutton prior to opening his own office in 1887. Day's first major commission was the Art Club of Philadelphia, which was built in 1889 and 1890 and was demolished in 1975 and 1776, on South Broad Street in Center City Philadelphia. His brother Henry joined the firm in 1893, forming Frank Miles Day & Brother, and Charles Zeller Klauder, Day's chief draftsman since 1900, became a partner in 1911, creating Day Brothers & Klauder. From 1912 to 1927, even after Day's 1918 death, the firm was known as Day & Klauder.
Day made major additions to the campuses of the University of Pennsylvania, Penn State University, and Wellesley College. Day & Klauder designed 18 buildings for Princeton University, although half were Klauder's work completed after Day's death.[2] Day's 1917 master plan for the University of Delaware was inspired by Thomas Jefferson's plan for the University of Virginia.[3] Following the firm's 1917 master plan for the University of Colorado Boulder campus, Klauder went on to design much of that university.
Second Church of Christian Scientist, 5443 Greene St., Germantown, built between 1918 and 1925, and now the Taulane Assembly Building at Germantown Friends School
Pedestal of Benjamin Franklin Statue, John J. Boyle, sculptor, College Hall, 3420 Locust Walk, on the University of Pennsylvania campus, developed between 1896 and 1899; in 1839, the statue was moved from 9th and Chestnut Sts. to its current location in 1939.
Franklin Field at the University of Pennsylvania (2nd stadium), 33rd & Spruce Sts., built in 1903 and demolished in 1922. The current Franklin Field, the third stadium on the site, was designed in 1922 by Day's partner, Charles Zeller Klauder, with the upper deck added in 1925
Weightman Hall (The Fieldhouse) at the University of Pennsylvania, 233-35 S. 33rd St., built in 1903–04