Table schema:
CREATE TABLE table_name_60 (her_age INTEGER, name VARCHAR, year_of_marriage VARCHAR, _number_of_children VARCHAR)

Question: What is the lowest figure for her age when the year of marriage is before 1853, the number of children is less than 8, and the bride was Eliza Maria Partridge?
SQL: SELECT MIN(her_age) FROM table_name_60 WHERE year_of_marriage < 1853 AND _number_of_children < 8 AND name = "eliza maria partridge"