- MADDOX 1 researcher
- MAGEE 1 researcherAlso see: MEGEE
- MAJOR 1 researcherAlso see: MAJORS
- MAJORS 1 researcherAlso see: MAJOR
- MALLET 1 researcher
- MALONEY 1 researcher
- MANLOVE 2 researchers
- MAPP 1 researcher
- MARRINER 1 researcher
- MARSH 1 researcher
- MARSHALL 2 researchers
- MARTIN 2 researchers
- MARVEL 1 researcher
- MASON 2 researchers
- MASONSPENCE 1 researcher
- MASSEY 1 researcher
- MASTERS 1 researcher
- MATTHEWS 2 researchers
- MAULL 1 researcher
- MAY 1 researcher
- MCCABE 1 researcher
- MCCALL 1 researcher
- MCCARTY 1 researcher
- MCCREADY 1 researcher
- MCDOWELL 1 researcher
- MCELWAIN 1 researcherAlso see: MCILVAIN
- MCGEE 1 researcher
- MCILVAIN 1 researcherAlso see: MCELWAIN
- MCNATT 1 researcher
- MEARS 2 researchers
- MEEKINS 1 researcher
- MEGEE 1 researcherAlso see: MAGEE
- MELSON 2 researchers
- MERRITT 1 researcher
- MESSICK 3 researchersAlso see: MEZICK
- MESSIQ 1 researcherAlso see: MEZICK
- METCALFE 1 researcher
- MEZICK 1 researcher
- MICHAEL 1 researcher
- MIDDLETON 1 researcher
- MILBY 1 researcher
- MILES 2 researchers
- MILLER 1 researcher
- MILLIS 1 researcherAlso see: MILLS
- MILLS 3 researchersAlso see: MILLIS
- MISTER 1 researcher
- MITCHELL 2 researchers
- MOORE 1 researcher
- MORGAN 1 researcher
- MORRIS 2 researchers
- MORTON 1 researcher
- MUMFORD 1 researcher
- MUNCE 1 researcherAlso see: MUNCEY
- MUNCEY 1 researcher
- MUNTZ 1 researcherAlso see: MUNCEY
- MURPHY 2 researchers
- MURRAH 1 researcherAlso see: MURRAY
- MURRAY 1 researcher
- MURRY 1 researcherAlso see: MURRAY
- MUSTARD 1 researcher
