Historical clue formulations

• Something that might be made with cold cuts from the fridge — 2021-04-01
• Singer ___ Davis Jr. — 2020-03-16
• Rat Pack member ___ Davis Jr. — 2020-01-20
• Lyricist Cahn who wrote "Let It Snow! Let It Snow! Let It Snow!" — 2018-12-25
• Rat Pack first name — 1999-05-26
• Songwriter Cahn — 1994-10-22