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In page Margaret Lindsay Holton:

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Returning to Toronto, Canada, Holton began a succession of jobs in the Canadian publishing and film industry, including: Assistant Editor at Andrew Marshall's FM GUIDE Magazine;[1] proof-reader and typesetter at Typesettra-Fotocomp[2] under type designer, Les Usherwood; sales rep of T.H.Best Book Binding & Printing[3] and Production Assistant at Roseanne McWaters Vin Lint and Associates, a commercial film production house in downtown Toronto.[citation needed]