William Elmslie of Lloyd's

Son and executor of Adam Wallace Elmslie (q.v.), grandson of John Elmslie senior (q.v.) and father-in-law of Thomas John Barnardo, 'Dr Barnardo', who married his daughter Sarah Louise ('Syrie') in 1873. William Elmslie was founder of a firm of loss adjusters which became William Elmslie & Son, and which was still extant in the late 1980s.

Wagner, Gillian. "Barnardo, Thomas John (1845–1905), philanthropist and founder of Dr Barnardo's Homes." Oxford Dictionary of National Biography. 23 Sep. 2004; Accessed 18 Dec. 2019. https://www.oxforddnb.com/view/10.1093/ref:odnb/9780198614128.001.0001/odnb-9780198614128-e-30600, which simply says of Barnardo's wife's family: 'The Elmslies lived in modest comfort in Richmond.'