Or, you can just fill in all the spaces as I did on the bottom one. It really depends on the letters involved and how compulsive you are about having a system.
I normally do not like the M when the two center strokes are short - but in this case, it works well to use up less space and that M complements the way the R-A-H-E are all high-waisted. On Anne's you can see how the crossbars are low waisted. I tend to be consistent, but it is fine to mix it up.
The dots between first and last name could tie in with the stamp. On the top one, the oval shape could be used instead of just a dot.
The addresses will be tiny white gel pen right under the names.