Filling out invites

I only have one envelope...does this mean on the outer envelope where the address goes is where all the invtired peoples names should be.

Example:

Mr. and Mrs. Dave Sheets and Family

Mr. and Mrs Dave Sheets (plus write out all kids names plus guests)

....or what exactly would I write

If the kids are young you can write Mr. and Mrs. Dave Sheets and Family

If the kids are old enough to be invited with guests then they should get their own invitations. And since you only have one envelope, then yes it would have to say Mr. Dave Sheets Jr. and Guest on it.