Deletion of David Niven Jr.

Comment: He is given non-trivial referencing in quite a few books: https://www.google.com/search?q=%22David+Niven+Jr.%22&rlz=1C1CHZL_enIE785IE785&tbm=bks&source=lnms&sa=X&ved=0ahUKEwj515vJipnqAhVbRhUIHbx0D0UQ_AUIFCgB&biw=1536&bih=731&dpr=1.25 1. He is catalogued in the ''https://www.bfi.org.uk/films-tv-people/4ce2ba5ce4545 British Film Institute'' (and quite a few of his films have WP articles). The article is well referenced, with non-trivial coverage.  He does not have a major SIGCOV piece (at least not one I could find via google), however, per : {{tq|If the depth of coverage in any given source is not substantial, then multiple independent sources may be combined to demonstrate notability}}. I can't see the value in deleting this BLP
Stance: keep
Cited policy: Wikipedia:Notability (WP:BASIC)