SELECT "July" FROM table_66798 WHERE "October" = 'jill de vries'
Who is in July where October is jill de vries?
CREATE TABLE table_66798 (
    "January" text,
    "February" text,
    "March" text,
    "April" text,
    "June" text,
    "July" text,
    "August" text,
    "September" text,
    "October" text,
    "November" text,
    "December" text
)