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_name_49 (crimean_war INTEGER, second_afghan_war VARCHAR, school VARCHAR)

### Question ###
What is the average Crimean War with a Second Afghan War totaling 1, and a School of hamblin and porter's school, cork?

### Accurate SQL ###

SELECT AVG(crimean_war) FROM table_name_49 WHERE second_afghan_war = "1" AND school = "hamblin and porter's school, cork"