[9] In 1915–16 Henry John Elwes commissioned her to paint flowers (which he had gathered on his travels), at his home Colesbourne Park in Gloucestershire.

[9] Snelling worked at the Royal Botanic Garden Edinburgh from 1916 to 1921 painting plant portraits for Sir Isaac Bayley Balfour, Keeper of the Botanic Garden and Professor of Botany at the University of Edinburgh.

Volume 169 of Curtis's was dedicated to her: "artist, lithographer and botanical illustrator who with remarkable delicacy of accurate outlines, brilliancy of colour and intricate gradation of tone, has faithfully portrayed most of the plants figured in this magazine from 1922 to 1952.

[10] She died at her home, 208 High Street, St Mary Cray, Kent, on 12 October 1972.

[9] In 2007 the Royal Botanic Garden Edinburgh held a ten-week-long exhibition dedicated to her work.