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_66117 ( "School" text, "Location" text, "Mascot" text, "# / County" text, "Enrollment" real, "IHSAA Class / Football/Soccer" text, "Year Joined" real, "Previous Conference" text )

### Question ###
Which Previous Conference has an IHSAA Class/ Football/ Soccer of 4a/5a/2a, and a Year Joined larger than 1926?

### Accurate SQL ###

SELECT "Previous Conference" FROM table_66117 WHERE "IHSAA Class / Football/Soccer" = '4a/5a/2a' AND "Year Joined" > '1926'