She restored paintings for the Fogg Museum at Harvard in the USA and National and Walker art galleries in Britain.
[1] Irmingard Emma Antonia Richter[2] was born on 16 April 1922 in Feldafing near Munich in Germany.
Her parents were an American art historian and dealer Georg Richter and German aristocrat Amalie (née Baroness Zündt von Kenzingen).
She was employed to assist Max Walters for a short time on a monograph about the genus Silene and learnt how to use herbaria, specialist books and plant records.
She was a founding member of the Bedfordshire, Cambridgeshire and Northamptonshire Wildlife Trust in 1956 and had a role in its organisation for many years.
The presence of the University of Cambridge and early plant taxonomists such as seventeenth century John Ray means that there is a greater depth of information for this county than others.
These included: In 2011, Crompton was made an honorary member of the Botanical Society of Britain and Ireland.