Table: rail_dept_loco
Columns: number
previous_number_s
previous_class
converted
withdrawn
disposal

Question: With a number of 30, what would be listed for previous number(s)?
SQL: SELECT "previous_number_s" FROM rail_dept_loco WHERE "number" = '30'

Question: With a previous number of 68165, what is the oldest converted date?
SQL: SELECT MAX("converted") FROM rail_dept_loco WHERE "previous_number_s" = 68165

Question: With a converted less than 1966 and a number of 32 (2nd), what is the largest number listed for withdrawn?
SQL: SELECT MAX("withdrawn") FROM rail_dept_loco WHERE "number" = '32 (2nd)' AND "converted" < 1966