John William Burdon, El Puerto de Santa Maria / Grupo Caballero
Company was established in 1821.
[Source: The label]
From 1932 owned by Grupo Caballero.
[Source: Company's web site, cited 2005]
Here are full texts from the labels
es54: Casa Fuenda 1821; 1 L e; 37.5% vol; Rom Burdon; Elaborado en Espana; John Wm, Burdon, El Puerto de Santa Maria, c/San Francisco, 32; The King of Rhums, The Rhum of Kings