That generic description could apply to both a 1942 half-dollar and a dime. Please see the appropriate question for more information: "What is the value of a 1942 US half dollar?" "What is the value of a 1942 Mercury dime?"
Miss Liberty, but she is not a real person.
It's Miss Liberty but not a real person
Miss Liberty is on the 1904 Barber dime, the first dime to have the portrait of a real person is the 1946 Roosevelt dime.
The 1942 Apollo 11 commemorative dime is a collectible coin created to celebrate the 25th anniversary of the first moon landing. It features an image of an astronaut descending a ladder on the moon's surface. These coins were issued in limited quantities and are highly sought after by collectors.
Benjamin Harrison was never on the U.S. dime. Only Miss Liberty and FDR.
It's a representation of Miss Liberty
Various images of Miss Liberty were on the US dime before the current series featuring Franklin D. Roosevelt was introduced in 1946.
It's NOT A REAL PERSON but the designers representation of what Miss Liberty looks like.
A date is needed post new question.
ALL United States coins carry that motto so it does not help to identify your coin. Any dime with that date is commonly called a Mercury dime because the image of Miss Liberty resembles the Greek god Mercury. Please see the Related Question for more information.
This design is almost always called a "Mercury" dime because the winged Liberty cap worn by Miss Liberty resembles the had worn by the Greek god Mercury.