In addition to the information given above, Marconi, along with GS Kemp and P Paget, went to Signal Hill, St John's Nova Scotia in 1901 to receive a signal sent from Poldhu in Cornwall. This signal was disputed and so Kemp and Paget returned a year later to repeat the experiment.
The connection with Galway is that earlier in 1901 a station was set up in Clifden to receive a relayed message from Poldhu via Co. Wexford.
As George Stephen Kemp is my Gt Gt Uncle, I have been interested in the development of radio communication from a very early age, and know from family history research that tracking him across the world is difficult, he never stopped anywhere very long!