How Can I Send Money To My Son In Prison?

You need to call the prison. They will be happy to tell you. Different institutions have different rules. Some let you send a money order directly to the inmate, others you have to send it to an office they have especially to accept money orders. So that your son will get it timely, just call and ask.  You can also ask them to send information concerning what visitors can wear, the amount of coins you can bring etc.