Frank had a son Steve, who was an excellent trials rider.
John Byles, one of your register members, has the original photo. He tells me the person who bought the sloper rallied it regularly, but has since also passed away. Maybe someone from the register would know it's whereabouts?
While only a young bloke when this article was written, I knew Graham Tremellan reasonably well. He put together some motors for my dad, including his, now my '51 square. He was very knowledgeable with square fours and had several Mk2's. I spoke to his son Paul a few years ago and all the bikes were sold on. Paul had a black Mk2 with a 4 into 4 megaphone exhaust. Very nice.
John Byles has Graham's '54 NH (actually a KH with NH motor). I wonder who in the UK has his squares?
Having not thought too much about any of this for 30 years or so, all this reminds me that 1. we're just custodians of our bikes and 2. if I don't get off my butt soon, I'll have pegged out without building and riding those 'projects' over in the shed and someone else will have all the fun
'51,'56 Squares, '48 VH, '27 Model C, R67/2, Mk IV Le Mans, '06 Super Duke and Ariel projects.