Swan electric lamp | Science Museum Group Collection
Who Invented the Light Bulb? It Wasn't Just Edison | HowStuffWorks
Joseph Swan's lightbulb moment came before Thomas Edison's | Letters | The Guardian
Joseph Swan Facts: Lesson for Kids | Study.com
Joseph Swan | The Lit & Phil
Joseph Swan - Wikipedia
How Many Inventors Does It Take To Invent A Light Bulb | Hackaday
The Westminster Collection - Honouring the nation's most important events and anniversaries with historic commemorative coins, stamps and collectables.
Molecular Expressions: Science, Optics and You - Timeline - Joseph Swan
Thomas Edison Did Not Invent The Light Bulb
100th Anniversary: Joseph Swan's Death - ChemistryViews