Indiana University has this entry in its catalog. The sheet music is not viewable online because it is still under copyright restrictions.

Title:
    Keep in your heart
Alternative Title:
    Good-night waltz
First Line:
    There is an old saying, at ev'ry party or ball,
First Line of Chorus:
    Hold me close in your arms, it's the good-night waltz;
Composer:
    Chon, Nelson
Composer:
    Newman, Charles, 1901-1978
Composer:
    Short, Albert E.
Performer:
    Henri Gendron and his Ambassador Orchestra
Published:
    Chicago: Will Rossiter, copyright 1928
Form/genre:
    Popular song
Instrumentation:
    Piano, Voice and Chords
Local Subject:
    Dance
Holding Institution:
    Lilly Library
Collection:
    DeVincent
IN Harmony ID:
    LL-SDV-116058
Call number:
    M1 .D48 Box: 116 No: 058
Note:
    Copies: 1
Note:
    Piano, Voice and Chords