1940s

The 1940s is the decade William Hanna and Joseph Barbera first collaborated on an animated project, but before they founded Hanna-Barbera.

1940

• Tom and Jerry
  • Puss Gets the Boot - February 10

1941

• Tom and Jerry
  • The Midnight Snack - July 19
  • The Night Before Christmas - December 6

1942

• Tom and Jerry
  • Fraidy Cat - January 16
  • Dog Trouble - April 18
  • Puss n' Toots - May 30
  • The Bowling Alley-Cat - July 18
  • Fine Feathered Friend - October 10

1943

• Tom and Jerry
  • Sufferin' Cats! - January 16
• Droopy
  • Dumb-Hounded - March 20 (involves neither Hanna or Barbara)
• Tom and Jerry
  • The Lonesome Mouse - May 22
  • The Yankee Doodle Mouse - June 26
  • Baby Puss - December 25

1944

• Tom and Jerry
  • The Zoot Cat - February 28
  • The Million Dollar Cat - May 6
  • The Bodyguard - July 22
  • Puttin' on the Dog - October 28
  • Mouse Trouble - November 23

1945

• Droopy
  • The Shooting of Dan McGoo - March 3 (involves neither Hanna or Barbara)
• Tom and Jerry
  • The Mouse Comes to Dinner - May 5
  • Mouse in Manhattan - July 7
  • Tee for Two - July 21
  • Flirty Birdy - September 22
• Droopy
  • Wild and Woolfy - November 3 (involves neither Hanna or Barbara)
• Tom and Jerry
  • Quiet Please! - December 22

1946

• Tom and Jerry
  • Springtime for Thomas - March 30
  • The Milky Waif - May 18
  • Trap Happy - June 29
• Droopy
  • Northwest Hounded Police - August 3 (involves neither Hanna or Barbara)
• Tom and Jerry
  • Solid Serenade - August 31

1947

• Tom and Jerry
  • Cat Fishin' - February 22
  • Part Time Pal - March 15
  • The Cat Concerto - April 26
  • Dr. Jekyll and Mr. Mouse - June 14
  • Salt Water Tabby - July 12
  • A Mouse in the House - August 30
  • The Invisible Mouse - September 27

1948

• Tom and Jerry
  • Kitty Foiled - June 1
  • The Truce Hurts - July 17
  • Old Rockin' Chair Tom - September 18
  • Professor Tom - October 30
  • Mouse Cleaning - December 11

1949

• Tom and Jerry
  • Polka-Dot Puss - February 26
• Droopy
  • Señor Droopy - April 9 (involves neither Hanna or Barbara)
• Tom and Jerry
  • The Little Orphan - April 30
  • Hatch Up Your Troubles - May 14
  • Heavenly Puss - July 9
• Droopy
  • Wags to Riches - August 13
• Tom and Jerry
  • The Cat and the Mermouse - September 3
  • Love That Pup - October 1
  • Jerry's Diary - October 22
• Droopy
  • Out-Foxed - November 5
• Tom and Jerry
  • Tennis Chumps - December 10