Brilliance & Prejudice: The Inventive John R. Wigham (Part Two)

In the last issue of The Keeper's Log [Volume XXIII, No 2] you read about the brilliant and innovative designs of John Wigham, and yet why is it that you probably have never heard of him before? Have you known of gas being used to illuminate lighthouses? Perhaps you didn't know gas was ever used in any significant way. Have you heard of the Wigham group-flashing lamp? Why did John Hopkinson get all the credit for its equivalent, the group-flashing lens? Have you heard of Wigham's bi-form, tri-form and quadri-form lenses? Why did James Douglass get all the credit for the design of the bi-form lens? Have you heard of Wigham's Hyper-radial lens Why did Thomas Stevenson get all the credit for the Hyper-radial lens design? John Wigham's failure to receive proper and due credit for his inventions happened for a reason!