That's a fair point with regard to his age - however, according to the letter that I have referenced below it goes on to say 'his parents never approved' with regard to an association with a young woman (24). To me, that would infer he was a young man, but then again, not necessarily.
Perhaps I should look at older men by the name of Ivor Mills, though I have looked from a birth date range of c.1911 - 1924, and no luck.