unknown son Clerk Peerage person ID=465654 Parents Sir John Clerk, 2nd Baronet Janet Inglis Children Siblings Sophia Clerk Sir James Clerk of Penicuik, 3rd Bt. John Clerk George Clerk-Maxwell John Clerk of Eldin unknown daughter Clerk unknown daughter Clerk unknown son Clerk unknown son Clerk unknown daughter Clerk Janet Clerk unknown daughter Clerk unknown son Clerk