Excerpt from the Ronaldsway ATC Diary page covering the 14th June 1939. Interesting following entry from the 16th says that Geoffrey De-Havilland arrived unannounced in G-ADNO (D.H. Technical School TK2) and did not report to Control! Also interesting entry from the 17th to say that Ronaldsway 'took over' from MH (Manchester Barton?)  due to 5 inbound aircraft and deteriorating weather at Ronaldsway.
 1930s ATC Pages
An Island Images picture © Jon Wornham