Born in 1874 and 1879, Jacques and Robert Delamain pursued the trade activities of their predecessors, while indulging in their respective passions. Eminent ornithologist, Jacques observed birds in nature, ultimately publishing his work, Why the Birds Sing. Under the auspices of the recently-established League for the Protection of Birds, he transformed his property into a reserve. Robert was an ethnologist and specialist in local history, publishing The History of Cognac, which remains a reference.