Name the mens singles for 1944/1945
CREATE TABLE "table1_12193259_1" (
  "season" text,
  "mens_singles" text,
  "womens_singles" text,
  "mens_doubles" text,
  "womens_doubles" text,
  "mixed_doubles" text
);
SELECT "mens_singles" FROM "table1_12193259_1" WHERE "season"='1944/1945';