Most of Bowen's work was carried out at the Trinity and Balliol College Laboratories. His 1966 Liversedge Lecture on Fluorescence was based on his life's research. On retirement he became an Honorary Fellow of University College and was one of the longest serving Fellows of that college (43 years as an ordinary Fellow and a total of 59 years). There is a room in the college named after him. He was also a prominent Worcester Old Elizabethan serving on its Committee for many years and organizing the Oxford branch of that club.
On 16 May1931 Bowen, then a University don, attended one of a series of three lectures given by Albert Einstein that year at Rhodes House. After the lecture he obtained one of the blackboards used by Einstein and together with Francis Wylie presented it to the Museum of the History of Science, Oxford where it remains on prominent display to this day.
It is interesting to note that at five generations of supervisor back from Bowen one will find Bunsen and at ten generations back, Lavoisier. Bowen lived for most of his working life in Park Town and is buried in Wolvercote Cemetery, north of Oxford.