Question: Are McClure's and Famous Monsters of Filmland both magazines?

Context paragraphs:
James Warren (publisher): James Warren (born James Warren Taubman; July 29, 1930) is a magazine publisher and founder of Warren Publishing.  Magazines published by Warren include "Famous Monsters of Filmland", the horror-comics magazines "Creepy", "Eerie", "Vampirella", the war anthology, "Blazing Combat" and the science fiction anthology 1984 (later renamed 1994) among others.  While somewhat derivative of earlier EC Comics, Warren magazines used some of the best comics illustrators and writers of the day and developed a style and feel of their own.

The Devil's Rain (album): The Devil's Rain is the seventh studio album by horror punk band the Misfits, released October 4, 2011 through their own label Misfits Records.  It is the band's first album in eight years, following 2003's covers record "Project 1950", and the first of original material since 1999's "Famous Monsters".  It is also the only release by the band's lineup of Jerry Only, Dez Cadena, and Eric "Chupacabra" Arce.  "The Devil's Rain" was produced by Ed Stasium, who previously worked with the band on "Famous Monsters".

Famous Monsters of Filmland: Famous Monsters of Filmland is an American genre-specific film magazine, started in 1958 by publisher James Warren and editor Forrest J Ackerman.

Basil Gogos: Basil Gogos (March 12, 1929 – September 13, 2017) was an American illustrator best known for his portraits of movie monsters which appeared on the covers of "Famous Monsters of Filmland" magazine in the 1960s and 1970s.

Warren Publishing: Warren Publishing was an American magazine company founded by James Warren, who published his first magazines in 1957 and continued in the business for decades.  Magazines published by Warren include "After Hours", "Creepy", "Eerie", "Famous Monsters of Filmland", "Help! ", and "Vampirella".

American Gothic Press: American Gothic Press is an American comic book imprint of "Famous Monsters of Filmland" magazine.  Established in the spring of 2015, it focuses predominantly in the Kaiju, Sci-Fi, fantasy, and horror genres, reflecting Honorary "Famous Monsters" Editor-in-Chief Forrest J Ackerman’s love for all things monstrous and mysterious.

McClure's: McClure's or McClure's Magazine (1893–1929) was an American illustrated monthly periodical popular at the turn of the 20th century.  The magazine is credited with having started the tradition of muckraking journalism (investigative, watchdog, or reform journalism), and helped shape the moral compass of the day.

Hotel Transylvania: Hotel Transylvania is a 2012 American 3D computer-animated fantasy comedy film produced by Sony Pictures Animation for Columbia Pictures.  It was directed by Genndy Tartakovsky and produced by Michelle Murdocca, and stars the voices of Adam Sandler, Andy Samberg, Selena Gomez, Kevin James, Steve Buscemi and Cee Lo Green.  The film tells a story of Count Dracula, the owner of a hotel called Hotel Transylvania where the world's monsters can take a rest from human civilization.  Dracula invites some of the most famous monsters to celebrate the 118th birthday of his daughter Mavis.  When the "human-free hotel" is unexpectedly visited by an ordinary 21-year-old traveler named Jonathan, Dracula must protect Mavis from falling in love with him before the hotel's guests learn that there is a human in the castle, which may jeopardize the hotel's future and his career.

The Monster Times: The Monster Times was a horror film fan magazine created in 1972.  Published by The Monster Times Publishing Co., it was intended as a competitor to "Famous Monsters of Filmland".  Although the main editorial focus of the magazine was horror media, it also featured articles and reviews of modern and classic science fiction/fantasy movies and television series, as well as comic books.  Each issue featured a fold-out centerfold poster usually based on that particular issue's feature story.

Echidna (mythology): In Greek mythology, Echidna ( ; Greek: Ἔχιδνα , "She-Viper") was a monster, half-woman and half-snake, who lived alone in a cave.  She was the mate of the fearsome monster Typhon, and known primarily for being the mother of monsters, including many of the most famous monsters of Greek myth.

Supporting paragraphs: McClure's Famous Monsters of Filmland
Answer: yes