Who won the women's singles before 1958 when dave f. mctaggart won the men's singles?
CREATE TABLE table_69957 (
    "Year" real,
    "Men's singles" text,
    "Women's singles" text,
    "Men's doubles" text,
    "Women's doubles" text,
    "Mixed doubles" text
)
SELECT "Women's singles" FROM table_69957 WHERE "Men's singles" = 'dave f. mctaggart' AND "Year" < '1958'
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: Who won the women's singles before 1958 when dave f. mctaggart won the men's singles? ### Input: CREATE TABLE table_69957 (
    "Year" real,
    "Men's singles" text,
    "Women's singles" text,
    "Men's doubles" text,
    "Women's doubles" text,
    "Mixed doubles" text
) ### Response: SELECT "Women's singles" FROM table_69957 WHERE "Men's singles" = 'dave f. mctaggart' AND "Year" < '1958'