Leonard Howard Loyd Irby was a British ornithologist and army officer. He specialised in the study of birds in southern Iberia
Artesian and consulting well engineers
Sir Frederick John Jackson was an English administrator, explorer and ornithologist. Jackson joined the British Ornithologists' Union in 1888. That year a paper by Jackson and Captain Shelley was published describing birds collected during his 1884-1886 trip to Africa. He collected many specimens in an 1898-1891 expedition to Uganda, and descriptions of this collection were published in a five-part paper in the Ibis in 1891-1892. Other papers described new species appeared in the Ibis and other journals between 1890 and 1917. Jackson was elected President of the East Africa and Uganda Natural History Society in 1910. He wrote nine of the nineteen chapters of Big Game Shooting, published in 1894. After retiring he worked on a complete history of the Birds of East Africa and Uganda, which was unpublished when he died in 1929, following pneumonia. The Birds of Kenya Colony and the Uganda Protectorate was completed by William Lutley Sclater
Charles Jamrach was a leading dealer in wildlife, birds and shells in 19th century London. He owned an exotic pet store on the Ratcliffe Highway in east London - at the time the largest such shop in the world. Jamrach's nearest rival was Edward Cross, who ran a menagerie at Exeter Exchange on the Strand.
Jamrach was born in Germany. His father, Johann Gottlieb Jamrach, was chief of the Hamburg river police, whose contacts with sailors enabled him to build up a trade as a dealer in birds and wild animals, establishing branches in Antwerp and London.
Charles Jamrach moved to London and took over that branch of the business after his father's death in circa 1840. He became a leading importer, breeder and exporter of animals, selling to noblemen, zoos, menageries and circus owners, and buying from ships docking in London and nearby ports, with agents in other major British ports, including Liverpool, Southampton and Plymouth, and also in continental Europe. His business included a shop and a museum - named Jamrach's Animal Emporium - on the Ratcliffe Highway and a menagerie in Betts Street, both in the East End, and a warehouse in Old Gravel Lane, Southwark.
Jamrach was also largely responsible for restocking P T Barnum's circus after a fire in 1864.
A sea snail, Amoria jamrachii, was named after Jamrach by John Edward Gray, keeper of zoology at the British Museum, to whom Jamrach had forwarded the shell after he obtained it
Animal dealer