Ivan Margary

Ivan Donald Margary (1896–1976) was a historian who, during his lifetime, was the leading authority on Roman roads in Great Britain. He wrote numerous works on Roman roads of which his most influential and complete was Roman Roads In Britain.

He was educated at Exeter College, Oxford.

Margary's primary gift to the study of Roman roads was the development of a catalogue system known as Margary numbers, numbering Roman roads so that they could be referred to by catalogue number with no sign of confusion, and to allow cross-referencing of the same road between different studies and authors.

In later life he financed the excavation of Fishbourne Roman Palace, near Chichester in West Sussex.