The eldest daughter of James Henry Clark, Emily Sophia, married John Biggs, a brewer of Cardiff. John Biggs lived at 37 Park Place, Cardiff and later at Old Well, Penylan Hill, Cardiff. He died at Bath, May 1920, aged 87. Their children were:

• Dr. John James Egerton Biggs, Lt Col. RAMC, Alderman & Lord Mayor of Cardiff, 1922, his wife, a Miss Wilson, was a sister of the wife of Sir Joseph Davies;
• Edgar Peyton Biggs, jeweller, London, b. 18.8.1868;
• Norman Witchell Biggs, b. 3.11.1870, killed in Northern Nigeria, 1903;
• Selwyn Hanam Biggs, b. 21.4.1872, a solicitor, m. Martin, Penarth;
• Cecil Fleming Biggs, b. 22.5.1881, m. E.M.Box, dau..Pela, m. McDonald;
• Geoffrey Napean Biggs, b. 12.6.1885, Lt. Cmdr. RN;
• Emily Sophia Biggs, died young.

Both Norman and Selwyn captained Cardiff Rugby Football Club.

Dr. J.J.E Biggs had three sons: John Heron, Aylwyn, and Norman Wilson. Norman Wilson, a retired engineer, lived  at Hazelhurst, Sully Road, Penarth. He died 1.12.1971, leaving a son, Christopher, born about 1941, a solicitor of London and Dorchester.

A cousin, Rosemary Peyton Biggs of Black Bourton, Oxforshire, was admitted FRCP, Lond. in 1974.