Shane ambled into the picture via the 1953 movie, adding a cowboy twist to its Irish essence. A variation of Sean with a hint of Shay and Zane, it is a popular choice in Ireland.

Although Susan had her heyday from the thirties to the sixties, and is now common among moms and new grandmas, and though most modern parents would prefer Susanna/Susannah, we have spotted some flickers of interest in a revival. It still retains a certain black-eyed-Susan freshness.

Nicole was derived from Nicholas, the English variation of the Greek Nikolaos, composed of the compounds nike, meaning "victory," and laos, "people." The variation Nicole arose in the Middle Ages in France to honor St. Nicholas. Names related to Nicole include Colette, Nicolette, Nika, Nicola, and Nicolina.

Britney Spears put this old-fashioned surname name back on the map when she chose it as her son Sean's middle name, which the family uses as his first.

A classic old Norman name popular for a thousand years and favored for kings (Richard Nixon was named for Richard the Lionhearted), as well as the hoi polloi (as in every Tom, Dick and Harry), Richard was the sixth most popular US boys’ name in 1925, and was still Number 8 in 1950, but is now much less popular.

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.

Jackson is one of those names that's much more popular than you think, coming in near the top of our annual Playground Analysis, which ranks names by grouping all their spellings together. Last year, more than 13,000 baby boys were named Jackson -- along Jaxon, Jaxson, Jaxxon, Jaxen, Jaxyn, Jaxsen, and Jaxsyn -- which counted together makes it the Number 5 boys' name.

Newly fashioned but familiar and with an on-trend, unisex feel, Addison seems like the perfect solution for anyone who can't decide between Madison, Adeline, and Alison.

Credit the award-winning single-named British singer for taking the girls’ name Adele from a quiet semi-retirement back into currency. Adele reentered the US Top 1000 popular baby names in 2011 and has remained there ever since.

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.

Sydney was a hot girls' name in the 1990s, but she's arguably still cool. One of the original old man names adopted for baby girls, Sydney's popularity may be down but she's not out.

Rebecca is a name representing beauty in the Bible, an Old Testament classic that reached the heights of revived popularity in the seventies but is still a well-used choice. It derives from the Hebrew name Rivkah, from the verb ribbqah, meaning "noose." The biblical Rebecca was the wife of Isaac and the mother of Esau and Jacob. Rebekah was a common spelling of the name in the Bible.

The independent Alex has become a classic in its own right. One of the truest unisex names, Alex is used almost equally for both sexes. Alex is used both on its own and as a short form of formal names of both genders, such as Alexander, Alexandra, and Alexis.

Taryn is an offshoot of Tara that has a variety of meanings in a variety of cultures. In 1953, Taryn was presented to the public as an invention by actors Tyrone Power and Linda Christian for their daughter's name, at which point it gained a short spurt of popularity. Taryn returned to the Top 1000 in 1974, peaked in the 1980s, then disappeared from the charts back in the 2010s.

Maggie is a cute, earthy short form that has been in style for several decades now, still sometimes used as an independent name by such parents as Jon Stewart. First used in Scotland, it got a large bump in popularity via the 1971 Rod Stewart hit song "Maggie May." Today's Maggie might just as well be short for a more adventurous name such as Magdalena or Magnolia as for the classic Margaret.

Maggie Gyllenhaal was born Margaret.

Stephanie is the feminine form of Stephen, derived from the Greek name Stephanos, associated with crowns and garlands It's been the name of several royal women throughout history, including the medieval Stephanie, Queen of Navarre, and Princess Stéphanie of Monaco, the daughter of Grace Kelly and Prince Rainier of Monaco. International variations of Stephanie include the German Stefanie, Italian Stefania, and Spanish Estefanía.

Cute boyish short forms like Teddy and Frankie and Billie are in some ways a relic of the past, of the days before unisex names, when girls were given feminized versions of their father's names, but they are starting to come into their own again.

The Scottish spelling of Isabel has a definite character of her own, the 'o' giving her an extra infusion of strength but also an element of confusion. How do you pronounce that? Answer: Exactly like Isabel or Isabelle.

Once the most popular month names, April has been overtaken by June (for girls) and August (for boys), as well as the charmingly old-fashioned May. Literary reference: the heroine of the book and movie Revolutionary Road, and there have been Aprils on Parks and Recreation, Glee, and The Vampire Diaries. Trivia note: comedian Ralphie May named his daughter April June May.

Thatcher is an open and friendly freckle-faced surname, fresher sounding than Tyler or Taylor, that dates back to the days of thatched-roof cottages. It is catching on with modern parents—it reached the US Top 1000 for the first time in 2013.