William Borthwick

British politician (1879-1956) (1879–1956)

Parents

• Thomas Borthwick
• Letitia Mary Banks

Children

• Margaret Ruth Borthwick
• Brian Thomas Borthwick
• Elinor Valerie Borthwick
• William Jason Maxwell Borthwick

Siblings

• Sybil Mary Borthwick
• Letitia Margaret Borthwick
• Elinor Colston Borthwick
• James Alexander Borthwick
• Thomas Borthwick, 1st Baron Whitburgh
• Malcolm Algernon Borthwick

Partners

• Ruth Margery Rigby