Rudolph, Frosty, and Captain Kangaroo is a memoir by Judy Gail Krasnow about her father, Hecky Krasnow, the producer of such classic children’s records and holiday tunes as “Rudolph, the Red-Nosed Reindeer,” “Frosty the Snowman,” “I’m Gettin’ Nuttin’ for Christmas,” “Peter Cottontail,” “Suzy Snowflake,” “I Saw Mommy Kissing Santa Claus,”...