Fellow of the Linnean Society of London in the context of "John Graham Kerr"

Daniel Rutherford FRSE FRCPE FLS FSA(Scot) (3 November 1749 – 15 November 1819) was a British physician, chemist and botanist who is known for the isolation of nitrogen in 1772.

Rear-Admiral of the Red Sir James Clark Ross FRS FLS FRAS (15 April 1800 – 3 April 1862) was a Royal Navy officer and explorer who explored both the North and South Poles. In the Arctic, he participated in two expeditions led by his uncle, John Ross, and in four led by William Edward Parry: in the Antarctic, he led his own expedition from 1839 to 1843.

Robert Brown FRSE FRS FLS MWS (21 December 1773 – 10 June 1858) was a Scottish botanist and paleobotanist who made important contributions to botany largely through his pioneering use of the microscope. His contributions include one of the earliest detailed descriptions of the cell nucleus and cytoplasmic streaming; the observation of Brownian motion; early work on plant pollination and fertilisation, including being the first to recognise the fundamental difference between gymnosperms and angiosperms; and some of the earliest studies in palynology. He also made numerous contributions to plant taxonomy, notably erecting a number of plant families that are still accepted today; and numerous Australian plant genera and species, the fruit of his exploration of that continent with Matthew Flinders.

The standard author abbreviation R.Br. is used to indicate this person as the author when citing a botanical name.

Sir Francis Darwin FLS FRS FRSE (16 August 1848 – 19 September 1925) was a British botanist. He was the third son of the naturalist and scientist Charles Darwin.