Question:  how many result with candidates being Richard J. Welch (R) Unopposed
SQL: SELECT COUNT("Result") FROM "1-1342233-6" WHERE "Candidates" = 'Richard J. Welch (R) Unopposed';

Question: what's the result with incumbent being Jack Z. Anderson
SQL: SELECT "Result" FROM "1-1342233-6" WHERE "Incumbent" = 'Jack Z. Anderson';

Question: what's the district with result being Re-elected and candidates being Clarence F. Lea (D) Unopposed
SQL: SELECT "District" FROM "1-1342233-6" WHERE "Result" = 'Re-elected' AND "Candidates" = 'Clarence F. Lea (D) Unopposed';

Question: what's the first elected with incumbent being Clair Engle
SQL: SELECT "First elected" FROM "1-1342233-6" WHERE "Incumbent" = 'Clair Engle';

Question: who is the the candidates with incumbent being Alfred J. Elliott
SQL: SELECT "Candidates" FROM "1-1342233-6" WHERE "Incumbent" = 'Alfred J. Elliott';

Question: who is the the incumbent with candidates being Jack Z. Anderson (R) Unopposed
SQL: SELECT "Incumbent" FROM "1-1342233-6" WHERE "Candidates" = 'Jack Z. Anderson (R) Unopposed';