Below are guideline when adressing your invitations

	Inner Envelope (if used)	Outer Envelope
Husband and Wife	Mr. and Mrs. Jones	Mr. and Mrs. Alan Jones
Husband, Wife & children under 16	Mr. and Mrs. Jones	Mr. and Mrs. Alan Jones Steven, David, and Lori (in order of age)
Married, but wife has kept maiden name	Ms. Sanders Mr. Jones	Ms. Mary Sanders Mr. Alan Jones
Single woman	Miss Sanders	Miss Mary Sanders
Single woman and guest	Miss Sanders and guest	Miss Mary Sanders
Single man	Mr. Jones (Master if young boy)	Mr. Alan Jones
Single man and guest	Mr. Jones and guest	Mr. Alan Jones
Engaged couple	Mr. Jones and Miss Sanders	Mr. Alan Jones
Widow	Mrs. Sanders	Mrs. John Sanders
Two sisters over 16, but still at home	The Misses Sanders	The Misses Lisa and Mary Sanders
Two brothers over 16, but still at home	The Messrs. Jones	The Messrs. Doug and Michael Jones