I finally located the 1920 US Census for Alice Mabel Emery, the sister my great grandfather Fred Owen Emery Daniels. Alice was using her first husband's name, "Holder" rather than her second husband's name of "Mitchell".
I know I have the correct census record because it the very next page following her brother, Fred Daniel's census record. Both Fred and sister Alice were living on Leland Avenue in Chicago. Also, the occupation matches the same as what was listed under her mother's census for 1920, that of a bookkeeper.
I still haven't located the 1910 or 1930 US Census for Alice Mabel Emery Holder Mitchell.