25 July 2011 Last updated at 02:53

Wellcome Trust at 75 - Henry's story

When Sir Henry Wellcome died on 25 July 1936, his will made provision for the establishment of a trust that would invest in biomedical research and into the history of medicine.

The resulting Wellcome Trust grew to become one of the UK's biggest charities, investing £600m each year. Ross MacFarlane from the Wellcome Library looks at the humble beginnings of the young man from America's Wild West who inspired it all.

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All images subject to copyright. Click show captions for image information. Music by KPM Music.

Slideshow production by Paul Kerley. Publication date 25 July 2011.

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Wellcome Trust at 75

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