Louis A. House Memorial
Southwest High School, Kansas City, Missouri
See dedication plaque below. Intriguing, isn't it? Also neat, is that these stones currently reside adjacent to the interesection of 65th Street and Pennsylvania Avenue. Different Pennsylvania Avenue, but I'd like to think it's no accident. According to the Truman Library archival staff, confirmation of the origin of the flag pole base stone pieces, is likely contained in files created by the Commission on the Renovation of the Executive Mansion, now defunct (of course).
1948-1852 mark the years of massive renovation at the White House initiated by the Truman Administration. The second floor balcony was added during this period of time, hence "The Truman Balcony." Not sure I get all the reasons for it - sure, convenience and not a bad view - but architecturally speaking the south facade is weaker as a result.
(1948 photo from White House Museum)