I found some info that may help you with your search.

I found a real estate transfer from 1941 where a Walter B. and Dorothy G. PARISH bought a house in Haverford, PA.

The Phila. marriage index - Walter B. PARISH & Dorothy G. MILES 1931.

Walter B. PARISH came to US in 1914 and worked as a butler in CT & PA. There is a WWII draft card for him.

Dorothy MILES came to the US 1923 (& 1928) and worked as a maid.

Both Walter & Dorothy were from London.

Find a grave has - Walter B. PARISH death 17 July 1955.

Hope this helps.