user: Question: What predecessor has a district less than 11, 68th as the Congress, and May 1, 1923 as the date?
Columns: ['District', 'Congress', 'Date', 'Predecessor', 'Winner']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [3.0, '52nd', 'November 8, 1892', 'Joseph McKenna ( R )', 'Samuel Hilborn ( R )']
SQL:

assistant: SELECT "Predecessor" FROM "Table" WHERE "District" < 11.0 AND "Congress" = '68th' AND "Date" = 'May 1, 1923';