Ah, I see what you mean. I think they’ve merged the records of two Valerie Newmans, the older one you mention born 1915 did the Mrs Mitchell and Mrs Marcus, the younger Valerie Newman born 1940 did the Office Girl in TV Series Suspense 1963. Probably why she didn’t keep her maiden name for her acting credits after she married.
The Charge of the Light Brigade
Mrs. Mitchell
1967The Wednesday Play (TV series)
Mrs. Marcus
– Drums Along the Avon (1967) … Mrs. Marcus
1963Suspense (TV series)
Office Girl
– Walk in Fear (1963) … Office Girl