Agatha Christie's Marple

Margot is suddenly a star again. After a nearly-half century absence, it hopped back on the Top 1000 list in 2013 and is on the rise. The Margot spelling is now given to three times as many baby girls as the Margo one.

This pretty sea-born name was used to dramatic effect by Shakespeare in his play Pericles for the virtuous princess who says she is "Call'd Marina, for I was born at sea."

Mark has the rare appeal of a strong, sleek name with a minimalist modern feel and ancient roots. The name Mark is taken from the Roman god of war Mars, also the namesake of the planet.

The name of our first First Lady still has something of a prim and proper image, academic and efficient. That quiet, traditional, and tasteful gestalt is exactly what makes Martha appealing to some parents today.

Sleek and sophisticated.

Mary is the English form of Maria, which ultimately was derived from the Hebrew name Maryam/Mariam. The original meaning of Maryam is uncertain, but theories include "drop of the sea" (from Hebrew roots mar "drop" and yam "sea"); "bitter" (from Hebrew marah "bitterness"); and "beloved" (from the Egyptian root mr).

Maud, lacy and mauve-tinted, was wildly popular a hundred years ago but has been rarely heard in the past fifty. Some stylish parents are starting to choose Maud again, especially as a middle. Maude is another spelling, associated with actress Maude Apatow.

Megan originally evolved from Meg, which itself derived as a nickname for Margaret. Margaret ultimately comes from the Greek word margarites, meaning "pearl." Megan is no longer a common nickname for Margaret—it is most often used as a full name. Other spellings include Meghan, Meagan, Megyn, and Meaghan.

Michael was the Number 1 American boys' name for almost half a century. While Michael has moved out of the Top 10 baby boy names, it's still widely used.

Unlike Jake or Sam, few parents put Mike on the birth certificate.

When scientists do research on the effects of an unpopular name, we're afraid that Mildred is one of the examples they cite, often in tandem with Bertha and Gertrude. But with cute nickname Millie on the rise, anything's possible.

Mitzi is a spunky German nickname name that might appeal to parents drawn to the genre of lively vintage chorus girl names that proliferated in 1930's musicals. Lively entertainer Mitzi Gaynor--who was originally named Francesca Marlene de Czani von Gerber--made the name notable in mid-century America.

Molly is one of the original nickname names, ALWAYS ranking among the US Top 500 girl names since statistics began, in 1880. Molly peaked in 1991 only to rise just as high again in 2011, and though softening retains a good measure of popularity and charm.

Mona had more than a moment in the sun, peaking in 1950 at Number 230 but falling off the Top 1000 completely in the late 1980s. Its similarity to the word "moaner" undercuts the appeal of its simplicity. In one recent year, fewer than 100 baby girls received the name, and we don't see it reviving any time soon.

An anglicized spelling of Muirne, the name of the mother of Finn mac Cool in Irish legend, Myrna has a unique sound and two possible meanings, both of which are positive. Actress Myrna Loy was a notable bearer and her fame caused a spike in popularity of the name, when it reached the US Top 150 in the 1930s.

Nathaniel was derived from the Hebrew name Netan’el, meaning "gift of God," composed of the elements natan, meaning "to give," and ’el, in reference to God. The name is featured several times in the Old and New Testaments, typically spelled Nathanael. In the New Testament, Nathanael is also known by his other name, Bartholomew.

Nora is a lovely, refined name that conjures up images of Belle Epoch ladies in fur-trimmed coats skating in Central Park. Long seen as a quintessentially Irish name though its roots are not in Ireland, Nora is a quietly stylish favorite that's tiptoed to the top of the popularity ladder.

Owen, a resonant Celtic name, has ranked among the Top 100 boys' names in the US for 20 years and is now at its highest point ever.

Pam was a somewhat pampered prom queen of the sixties who was never called by her full name, which is a pity because Pamela is so mellifluous and rich in literary history. A Top 25 name from the late 1940's through the late 60's, Pamela has just, sadly, dropped out of the Top 1000.