Kumi and James Johnson outside Cafe Trieste in San Francisco. I do believe James is a Sartorialist. The 49 Mile Ride follows a signed tourist route through San Francisco, sort of, and is organized by Pete Young.

Kumi and James Johnson in 2006 at Café Trieste in San Francisco, looking over the route map for the day ride. [Paul d’Orléans]
Paul d’Orléans is the founder of TheVintagent.com. He is an author, photographer, filmmaker, museum curator, event organizer, and public speaker. Check out his Author Page, Instagram, and Facebook.