Malone, Walter, [259].
March, Daniel, [61].
Markham, Edwin, [39].
Martin, Edward S., [11], [70], [168].
Marvin, Frederic Rowland, [65], [68], [87], [94], [94], [129], [155], [169], [169], [186], [208], [220], [274], [277], [279].
Mason, Caroline Atherton, [50], [53], [80], [108], [159], [219], [226].
Mason, Mary J., [86].
Massey, Gerald, [48], [153], [166], [170].
Matheson, George, [234].
Maxfield, J. J., [179].