- Author: F. R. Gruger Author Record # 142872
- Legal Name: Gruger, Frederic Rodrigo
- Birthplace: Philadelphia, Pennsylvania, USA
- Birthdate: 2 August 1871
- Deathdate: 21 March 1953
- Language: English
- Webpages: Galactic Central, Library of Congress, societyillustrators.org, thekellycollection.org
- Note: American illustrator, especially for ''The Saturday Evening Post''