looking for the font of James Stewart and the bottom names 'Lionel Barrymore...'

Steelfish  Vorgeschlagen von pilaster 
Supposedly  Vorgeschlagen von pilaster 

Frank Capra et al is hand lettering rather than a font. You could do worse than Steelfish for the bottom credits.

If your looking for similar to the Frank CAPRA et al (since an exact match is unlikely) you could try...Supposedly. It's a similar style, but not a match or a correct ID.