The card tray has the following 21 family names with the initial M.

Maltha
Maris
Mark, van der
Marks (2)
Martens (2)
Meer, van der (8)
Meeteren, van
Meijer (2)
Menagé Challa
Metz
Meulen, van der (6)
Meulenkamp
Miedema
Molenaar (11)
Mondt
Most, van der
Mous
Muller
Munneke
Munnik, de
Murris