CREATE TABLE table_39629 ("District" TEXT, "Incumbent" TEXT, "Party" TEXT, "First elected" FLOAT, "Result" TEXT)

What is the party of re-elected, incumbent Charles H. Grosvenor, who was first elected before 1894?
SELECT "Party" FROM table_39629 WHERE "Result" = 're-elected' AND "First elected" < '1894' AND "Incumbent" = 'charles h. grosvenor'
SELECT "Party" FROM "table_39629" WHERE "First elected" < '1894' AND "Incumbent" = 'charles h. grosvenor' AND "Result" = 're-elected'