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A simplified family tree for the firm of Kidsons showing the development of the firm and how the firm's name has evolved.

Family Tree

This tree is reproduced with the kind permission of Peter Boys and Accountancy magazine. It was originally published in the July 1989 issue of Accountancy (p102).


Herbert Kidson began in practice in 1869, becoming a member of the Manchester Institute of Accountants in 1875. By 1877 he was in partnership as Kidson & Backhouse and by 1880 as Kidson & Astbury. (Manchester and Salford at the Close of the 19th Century: Contemporary Biographies, William Burnett Tracey, W T Pike, 1899 and The Accountants' Directory 1877, Alfred C Harper (ed), Williams & Strahan, 1877.)


Kidsons and Hodgson Impey merged from 1 May 1990 to form Kidsons Impey (Accountancy, April 1990, p.8).

Kidsons Impey became HLB Kidsons from 1 May 1999 to reflect its international network of firms (Accountancy Age, 4 March 1999, p.1).

HLB Kidsons amalgamated with Baker Tilly on 1 April 2002, the new firm practising under the latter name (Accountancy, February 2002, p.10).

What's in a name: Firms' simplified family trees

Between January and December 1989, accounting historian Peter Boys prepared a series of simplified family trees showing the development of the big accountancy firms of the day.

The original trees from 1989 have been reproduced here with a series of textual updates from Peter Boys which have taken the story forward to May 2005, the 125th anniversary of ICAEW. Since then, the staff of the ICAEW Library & Information Service have added notes on further changes that have taken place.

If you are aware of any further information which would add to or improve the accuracy of the family trees please let us know. You can contact us at library@icaew.com

© Original trees are copyright of Accountancy Magazine and CCH.

© Updates are copyright of Peter Boys.