Catherine Graham, Duchess of Montrose

Catherine Elizabeth McDonnell Graham, Duchess of Montrose (; 5 September 1935 – 29 October 2014) was a Canadian-Scottish philanthropist. She was the wife of The 8th Duke of Montrose.

Early years She was born in Winnipeg, Canada, the daughter of Norman Andrew Thomson Young and his wife, Mary (née Moody), of Cornish origin. She immediately became known as Marchioness of Graham, and in 1992, when her husband inherited his father's titles, she became the Duchess of Montrose.

Together, they had three children: Lady Hermione Elizabeth Graham (b. 1971), who married Christopher John Thornhill. James Alexander Norman Graham, Marquess of Graham (b. 1973), who married Cecilia Manfredi. Lord Ronald John Christopher Graham (b. 1975), who married Florence Mary Arbuthnott.

Following their marriage, the couple moved permanently to Scotland, where they lived at Auchmar House near Loch Lomond (the ancestral seat Buchanan Castle in Drymen having become dilapidated years earlier). The duchess died, aged 79, at Forth Valley Royal Hospital in Larbert, Scotland.

Philanthropy After the establishment of the Preshal Trust, a charity based in Govan, the duchess became one of its leading supporters. "In her latter years, the Duchess supported countless charities and causes" including the "Red Cross, the Christmas carol concert on behalf of Cancer Research UK at Glasgow Cathedral, the Scotland's Gardens scheme to open gardens to the public, and the annual Women of Scotland Lunch to celebrate the achievements of Scottish women."