David St. Clair (died 1712) (d. 1712) Parents Henry St. Clair, 1st/10th Lord Sinclair Grizel Cockburn Children Siblings Henry St. Clair James St Clair Catherine St. Clair Elizabeth St. Clair John St Clair, Master of Sinclair Margaret St. Clair William St. Clair Matthew St. Clair Grizel St. Clair unknown daughter St. Clair