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Andrea Callison

Andrea grew up in Chemainus on Vancouver Island, was employed mainly by law firms for the first 20 years of her working career, in Duncan, Vancouver, Bermuda and lastly in Smithers where their family have lived for 40 years.

After having 4 children, she decided to work with her husband, Wayne Callison, starting in 1987.  She received the Advanced Certificate in Accounting in 1999.

Andrea enjoys squash, tennis, dragon boating and walking/hiking – and has made many friends as a result of these activities.   

She enjoys working in a small office, dealing with the diversity of people from all walks of life – enjoys the work – particularly assisting clients with their personal income taxes.

One of the most enjoyable parts of Andrea’s work is meeting the numerous clients she deals with.

Brian Yamanaka

Brian was born and raised in Kitimat before moving south to Burnaby to attend Simon Fraser University.  After a career as a strength and conditioning coach running a boutique fitness facility, he returned to the University of British Columbia to get his Diploma in Accounting.  When not at work, Brian can be found mountain biking, hiking, backcountry skiing, cross country skiing or on the ice playing hockey. 

Brian began articling in the Smithers CS&Co office in February 2012 and obtained his designation as a professional accountant in 2015.


Charlotte Stam

Charlotte grew up in Birmingham in the UK and moved to Manchester UK to complete her bachelors degree in Mathematics with French.  During her time at university she had the opportunity to spend a year in Corsica teaching English as a foreign language to children aged 5 to 12.  The family moved back to her husband’s hometown, Smithers, in June 2014.  She has 3 daughters and enjoys spending free time (rare as it is!) skiing, hiking and biking.

Charlotte qualified as an accountant at KPMG, a worldwide major accounting firm, in 2011.  She spent 5 years with the firm, working in the Manchester, London and Basel (Switzerland) offices before joining CS&Co., Smithers in 2014.  She comes from a strong audit background, and enjoys the variety of working with a multitude of different clients, with different needs and focus areas.

Dorian Callison

Dorian grew up in Smithers and has lived there most of his life. He initially worked in Forestry, graduating from UBC with a bachelor of Science in Forestry. Eventually Dorian decided to follow in his parent’s footsteps and pursue a career in accounting. He enjoys hockey in the winter and slo-pitch in the summer. He volunteers with various organizations in the community.


Dorian obtained a diploma in accounting from the UBC Sauder School of Business in 2003. He then entered the CA School of Business, while training in Carlyle Shepherd & Co.’s Terrace office. Dorian obtained his CA designation in 2006 and subsequently moved home to Smithers.


Wayne Callison

Wayne was born and raised in Dawson Creek, BC. He obtained a Bachelor of Commerce from UBC and then articled with Arthur Anderson’s Vancouver office, obtaining his CA designation in 1971. After 3 years in Bermuda with Coopers and Lybrand, CA’s he returned to Vancouver from the tax haven to work 2 ½ years for CRA as a small business auditor.

In 1977 Wayne moved to Smithers to run the Smithers office of Carlyle Shepherd & Co.

Wayne is an avid hunter, loves to fish, play hockey and get on his horse while he still can.  After 40 years of practicing his profession in Smithers and raising a family of three boys and a girl, in his own words “There is no place I would rather have worked, played and raised a family with my wife Andrea. I look forward to working with my son Dorian in the transition of our Smithers practice.”