Franz Gruber is listed in the credits for the following albums:
|1987||First Call||An Evening in December Volume 2||Songwriter|
|1989||Michael W. Smith||Christmas||Songwriter|
|1991||Deliverance||What a Joke||Songwriter|
|1999||Dallas Holm||Holm for Christmas||Songwriter|
|2000||Deliverance||Classic Archives (What a Joke / Stay of Execution)||Songwriter|
The co-writer of the Christmas Hymn, "Silent Night."