I am writing a letter to two teenage cousins (sisters.)  Need help with the address line.  I think it should be MISSES LAURA AND LINDA SMITH.  I would appreciate confirmation or suggestions.

You’re right in a formal sense. They probably won’t care, but their parents will appreciate the civility.

If you want to make them feel special, send two letters, each one addressed to MISS.

Dear Smitherteens….

You made my day.