This is the discussion from the Heritage Roses of San Juan Bautista on Face Book. Jill Perry is the Curator of the San Jose Heritage Rose Garden and has been active in the preservation of the roses at San Juan Bautista for some years. "Jill Perry: I should explain a bit about the Pitcairn rose. We know there was one from there in about 1937. The owner said it would have pride of place in his garden. We also know that Pitcairn Island received roses from England after the Panama Canal opened and the island became a stop on the route between England and New Zealand and Australia. So whatever the rose was it probable was bred in England in the early 1900s. There are two unknowns in the garden now, and we wonder if either the HT or the HP in that clump behind the Rose of Castile is that rose. HTs were more common then, so it would be the more likely of the two. On the other hand, the Pitcairn rose could have died, and those two roses are just mysteries like many other SJB roses."