Duncan David 1893 1960 is not used in this library's catalog.

For works of this author entered under other names, search also under Rowland, Henry, 1893-1960,  Price, Leland, 1893-1960,  Sterling, Dorothy, 1893-1960,  Mitchell, Virginia, 1893-1960,  Duncan, David, 1893-1960,  Roach, Charles E., 1893-1960  

Try a search for George, Charles, 1893-1960