The Forsyth surname is, even by Scottish standards, a name of unusually disputed origin. Black's Surnames of Scotland — the standard reference, in print since 1946 — gives it a "twofold" derivation: either from a now-lost place called Fersith in Midlothian, or from the Old Gaelic personal name Fearsithe, meaning "man of peace." A third tradition, less well evidenced but charmingly told, traces the family to a Norman nobleman de Fronsoc, whose ancestor Forsach was a Norseman granted lands on the Dordogne in Aquitaine.
Whichever theory is true, the surname is first reliably attested in 1296 — when one William de Fersith signed the Ragman Roll at Berwick, submitting in name to Edward I of England — and from that moment the Forsyths are documented continuously across the Scottish record for the next seven hundred years.
Helen's branch of the family belongs not to the famous Forsyths of Nydie in Fife, nor to the Forsyths of Stirling who fought at Bannockburn, but to the quieter Border country of the south-west — a country of low hills, slow rivers, peat-roofed cottages, sheep and cattle, and a long memory of the cross-border raiding of the 16th and 17th centuries. The earliest Forsyth in the direct line is one Joseph Forsyth, born around 1740 in this same Dumfriesshire country, his birthplace not yet pinned down by the parish records.