What jockey rode for Michael House before 2012
CREATE TABLE "winners_of_the_virginia_derby_since_1998" (
  "year" real,
  "winner" text,
  "jockey" text,
  "trainer" text,
  "owner" text,
  "distance_miles" text,
  "time" text
);
SELECT "jockey" FROM "winners_of_the_virginia_derby_since_1998" WHERE "year"<2012 AND "owner"='michael house';