Family Of Frederick James Hallifax (1870-1933) Of Ancrum / Singapore

I'm looking for descendants from Frederick James Hallifax (1870-1933) to share some information.

Son of Benjamin Wilson Hallifax & Mary Anne Cox.

He married Roberta Martin Cunningham.He died in 1933.

His issue:-

i) Thomas Frederick Hallifax,RN (1914-1990) married Cowley Heaton.

ii) Mary Barbara Hallifax (1917-?)

iii) Dr. James Cunningham Hallifax (1923-1983) married Dr.Elizabeth Stewart Humble.

His issue:-

ai) Peter James Hallifax.

aii) Linda J Hallifax.

Please contact me at:- winsonsaw20032000@yahoo.com