A.O. Osgood

By 2005, A.O. Osgood had written Rubber-Soled Shoes and Silver-Tipped Bullets – A Life in Supplies, which was in the "Historical and Reminiscent" genre and was publicised on the UNIT website. (PROSE: UNIT Publications)

Behind the scenes
It is possible, and even likely, that this character was intended to be Osgood from The Dæmons, named "Tom" in 1996's The Eye of the Giant. Years later, the character of Petronella Osgood would be introduced to the revived series.