Henry Alexander St. Clair-Erskine (born 1792) (b. 1792) Parents James St Clair-Erskine, 2nd Earl of Rosslyn Harriet Elizabeth Bouverie Children Siblings Henry Francis St. Clair-Erskine James St Clair-Erskine, 3rd Earl of Rosslyn Lady Janet St. Clair-Erskine