Maud Friar (Crossley) died in 1993 in Brentwood Essex (information taken from the GRO index). Leslie Friar died in 1952 also in Essex.Brenda married Anthony Brothers the year after her father died in 1953. They had two children born Hackney Janet in 1955 and Christine in 1957. Janet married John S N Tovey in Brentwood Essex in 1975. It looks like Christine married Alan J Marsh in Dacorum Hertfordshire in 1976.
Don't know if this helps.All information taken from the Find my Past WEbsite.