The author of the report on the Viscount Aircraft VH-TVC accident in 1961 was the Australian Board of Air Accidents Inquiry. The report was chaired by a chairman whose name is not explicitly mentioned in the search results, but it is clear that the investigation and report were conducted under the authority of this Australian government body. The report details the findings of the investigation into the accident that occurred on November 30, 1961, near Sydney, New South Wales. For more detailed information, one can refer to the National Library of Australia's catalog entry here.