His half sister CAMELIA (ch f 1873 MACARONI)[was a winner of the Oaks Stakes 2414m=12f; and the, One Thousand Guineas Stakes 1609m=8f]. Camelias full sister GARDENIA (ch f 1871 MACARONI) is ancestress to Belmont Stakes winner CAVEAT.
Rayon D Or also had a half brother: CHAMANT (b c 1874 MORTEMER)[who was a winner of the Two Thousand Guineas Stakes 1609m=8f; the Dewhurst Stakes 1408m=7f; and the, Middle Park Stakes 1207m=6f].
Rayon D Or is French for Golden Ray