How old was Joe DeNat in Spring Festival?

Mel BlancMel Blanc was 29 in Spring Festival as 'Groundhog'.

Birthday: Sat, May 30 1908 –
Mon, Jul 10 1989

Ben HarrisonBen Harrison was 40 in Spring Festival as 'Writer, Director'

Birthday: Mon, Nov 30 1896 –
Tue, Apr 01 1980

Charles MintzCharles Mintz was 41 in Spring Festival as 'Producer'

Birthday: Wed, Jan 01 1896 –
Thu, Jan 04 1940

Joe DeNatJoe DeNat was 38 in Spring Festival as 'Music'

Birthday: Sun, Oct 02 1898 –
Wed, Aug 15 1951

Manny GouldManny Gould was 33 in Spring Festival as 'Animation'

Birthday: Mon, May 30 1904 –
Sat, Jul 19 1975