Text of a presentation made by Robert Jenkins at the Todd Symposium 17 August 2012. It summarises Todd's professional endeavours in and significant contributions to the field of Astronomy.
Todd presided over a meeting of interested individuals to establish a single Astronomical Society. Todd indicated a preference that it should not be a section of the Royal Society.
Verbatim of an introduction of a lecture by Todd to the Boys' Institute at the YMCA. Includes a summary of the following lecture which covered the solar system and the stellar universe