Encyclopedias, Almanacs, Transcripts, and Maps
- McDonagh, Martin
- McDougall, Alexander
- McDowell, Ephraim
- McFadden, Daniel Little
- McGill, William James
- McGraw, John Joseph
- McGready, James
- McGrory, Mary
- McGuinness, Martin
- McGwire, Mark David
- McIntosh, Lachlan
- McIntosh, Millicent Carey
- McKean, Thomas
- McKees Rocks
- McKenna, Reginald
- McKinney
- McLane, Louis
- McLaughlin, Andrew Cunningham
- McLean
- McLean Canyon