John Daniel Vittoria Packman qualified as Doctor of Medicine (MD) at Queens College, Cork, Ireland, and as a licentiate of the Royal College of Physicians of England (LRCP). He worked in the British East India service as a surgeon in the Madras Native Infantry. In 1850 he published a pamphlet in Madras, India, entitled Remarks on some affections of the liver and bowels; being an enquiry into their principal causes, and suggestions for avoiding their influence (26 pp). Ten years later he resided in Stellenbosch, Cape Colony, and published a pamphlet on The vine disease in Cape Colony: Its causes, nature, and remedies (Cape Town, 1860, 18 pp). His son, Cyrus Hugh Larken Packman (1837-1918) was Rector of St Bartholomew's church, Grahamstown, for 45 years.