Though suffering from a cold he had insisted on attending a niece 's wedding and succumbed to pneumonia .
Johnson died on 12 April 1926 aged 61 at his house in London , 3 Adelphi Terrace House , Robert St , now NW1 .
Though suffering from a cold Johnson had insisted on attending a niece 's wedding and succumbed to pneumonia .
Johnson died on 12 April 1926 aged 61 at his house in London , 3 Adelphi Terrace House , Robert St , now NW1 .