US D636965 S1
The ornamental design for a memorial marker, as shown and described.
FIG. 1 is a perspective view of a memorial marker showing my new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a front elevational view thereof, the rear view is a mirror image;
FIG. 4 is a right side elevational view thereof, the left side elevational view is a mirror image;
FIG. 5 is a bottom plan view thereof; and,
FIG. 6 is a sectional view taken along line 6—6 of FIG. 1.