CREATE TABLE table_61561 ("Election" FLOAT, "1st Member" TEXT, "1st Party" TEXT, "2nd Member" TEXT, "2nd Party" TEXT)

Which 1st member has Thomas Grimsditch as a 2nd member?
SELECT "1st Member" FROM table_61561 WHERE "2nd Member" = 'thomas grimsditch'
SELECT "1st Member" FROM "table_61561" WHERE "2nd Member" = 'thomas grimsditch'