From the OHS PC Database, derived from A Guide to North America Organ Builders by David H. Fox (Organ Historical Society, 1991). -- No Notes

Georges Schwenkedel (1885-1958) first worked for the Maison Roethinger, then for the short-lived Maison Zann located in Strasbourg-Bischheim. In 1924, he set up his own factory in Strasbourg-Koenigshoffen. He acquired a very personal vision of "neo-classicism". Aware of the aesthetic arguments put forward by the Alsatian Organ Reform (Emile Rupp, promoted by Albert Schweitzer and put into practice by Roethinger), he asserted his style from the first opuses, by practicing a very personal evolution of romanticism. His son Curt joined the company, which he took over in 1957 where he quickly evolved into the Nordic style, practicing "full-wind" harmonization. Schwenkedel closed its doors in 1974, due to serious financial difficulties, after having delivered about 200 opuses (160 in 1960). A new organ built by Kurt Schwenkedel is located in Eglise Protestante Unie de Passy Annonciation (1973).
from organs of Paris website (their translation).