Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_59231 ( "District" text, "Incumbent" text, "Party" text, "First elected" real, "Results" text )

### Question ###
What is the lowest First Elected, when District is 'Massachusetts 10'?

### Accurate SQL ###

SELECT MIN("First elected") FROM table_59231 WHERE "District" = 'massachusetts 10'