Memorial board from Temple Sinai in Squirrel Hill. Surnames listed include Mann, Marcus, Margolis, Markus, Martin, Mason, Mayer, Meieran, Melnick, Merenstein, Mervis, Metosky, Meyer, Meyers, Millenson, Miller, Minde, Minkoff, Mishelevich, Nathanson, Mittelman, Molans, Mordoh, Morgan, Moritz, Morris, Morton, Moskovitz, Moss, and Moser.