Table: board_supervisors_elections
Columns: year
1st_district
2nd_district
3rd_district
4th_district
5th_district

Question: Who was in the 4th district in 1924?
SQL: SELECT "4th_district" FROM board_supervisors_elections WHERE "year" = 1924

Question: List all the years with Cecil M. Featherly in the 1st district and David L. Baker in the 2nd district?
SQL: SELECT "year" FROM board_supervisors_elections WHERE "2nd_district" = 'David L. Baker' AND "1st_district" = 'Cecil M. Featherly'

Question: What is the last year that Howard A. Wassum was in the 5th district?
SQL: SELECT MAX("year") FROM board_supervisors_elections WHERE "5th_district" = 'Howard A. Wassum'