Input (grade 13): Its forty founder members, all admitted on 10 December 1768, included a father\/daughter combination (George Michael Moser and Mary Moser) and two sets of brothers (George Dance the Younger and Nathaniel Dance-Holland, and Paul and Thomas Sandby).
Output (grade 11): Sir Joshua Reynolds was its first president, Sir Joshua Reynolds, National Portrait Gallery, London, accessed September 2009 and Benjamin West its second.