Filmdirector Frederick Zelnik In Harrow

A Memory of Harrow.

Unfortunately, I have never stayed at the beautiful Harrow.
But I'm very interested in Harrow because I'm looking for a house where the German filmdirector and producer Frederick (Friedrich) Zelnik and his wife, the actress Lya Mara, lived. They probably built their own house in Harrow in 1936. I have taken this from the "Reports oft the Town Planning Committee" of December 3, 1935. Under "Name of Applicant" it says: "L. C. Norton for F. Zelnik". The address given by the residents' register of 1939 is: "Alexandra House The Hill". In the "London Gazette" of 14 June 1940 the following address is given:
"Zelnick, Friedrich, known as Frederick
Zelnik; Of no Nationality; Film Producer;
Alexandra House, Stanmore Hill, Middlesex.
3 May, 1940."
In 1940 they both became English citizens. After the death of Frederick Zelnik in 1950 Lya Mara lived in "Stanmore Hill, Dower House 114". Does anyone know if these buildings still exist and where they stand? Can anyone remember Frederick Zelnik and Lya Mara? And can anyone get anything out of the name "L. C. Norton"? I am very grateful for every hint.

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